Presentations

1978

1) `Nonaxisymmetric Models of Collapsing, Rotating Protostars' (contributed talk), NASA Planetary Geology Principal Investigators Meeting, Tucson, Arizona. 

2) `Stellar Formation' (seminar), Theoretical Journal Club, Department of Physics, University of California, Santa Barbara, California.1979

3) `A Comparison of the 3D Collapse Models' (invited talk), Summer Workshop on the Formation of Stars and Planetary Systems, University of California, Santa Cruz, California. 

4) `Numerical Models of Protostellar Formation in Rotating Interstellar Clouds' (invited seminar), Astrophysics Seminar Series, NASA Ames Research Center, Moffett Field, California.

1980

5) `Collapse and Equilibrium of Rotating, Adiabatic Clouds' (contributed talk), 155th Meeting of the American Astronomical Society, San Francisco, California. 

6) `Star Formation in Rotating Interstellar Clouds' (invited seminar), Astrophysics Group, Los Alamos Scientific Laboratories, Los Alamos, New Mexico. 

7) `Estimates of Fragmentation Rates in Rotating, Interstellar Clouds' (seminar), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

8) `Collapse and Fragmentation of Rotating, Adiabatic Clouds' (contributed talk), 58th Colloquium of the International Astronomical Union, Los Alamos, New Mexico. 

9) `3D Numerical Calculations of Protostellar Fragmentation' (invited talk), 12th Sierra Conference on Astrophysics, Tuolumne Meadows, California. 

10) `Report on IAU Colloquium 58' (seminar), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

11) `Collapse, Equilibrium, and Fragmentation of Rotating, Adiabatic Clouds' (seminar), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

12) `Collapse, Equilibrium, and Fragmentation of Rotating, Adiabatic, Protostellar Clouds' (invited seminar), Astrophysics Group, Los Alamos Scientific Laboratory, Los Alamos, New Mexico. 

13) `Collapse, Equilibrium, and Fragmentation of Adiabatic Protostellar Clouds' (invited seminar), Theoretical Physics, Stanford University, Palo Alto, California.1981

14) `Collapse, Equilibrium, and Fragmentation of Rotating, Adiabatic, Protostellar Clouds' (invited seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

15) `A Heuristic Model for Fragmentation in Rotating, Interstellar Clouds' (invited seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

16) `Collapse, Equilibrium, and Fragmentation of Rotating, Adiabatic Clouds' (contributed talk), Aspen Workshop on the Physics of Star Formation, Aspen, Colorado. 

17) `Report on the Aspen Workshop on the Physics of Star Formation' (seminar), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

18) `Hydrodynamical Models of Presolar Nebula Formation' (contributed talk), 13th Meeting of the Division for Planetary Sciences, Pittsburgh, Pennsylvania. 

19) `Hydrodynamical Calculations of the Fragmentation of Interstellar Clouds into Binary and Multiple Protostellar Systems' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C.

1982

20) `Hydrodynamical Models of Presolar Nebula Formation' (poster), Neighborhood Astronomers Meeting, Applied Physics Laboratory of the Johns Hopkins University, Laurel, Maryland. 

21) `Time-Dependent Models of Single and Double-Layer Mantle Convection' (contributed talk), Spring Meeting of the American Geophysical Union, Philadelphia, Pennsylvania. 

22) `Nonisothermal, Axisymmetric Models of the Presolar Nebula' (contributed talk), 14th Meeting of the Division for Planetary Sciences, Boulder, Colorado.

1983

23) `On the Formation of the Presolar Nebula from a Multiple Protostellar System' (contributed talk), 14th Lunar and Planetary Science Meeting, Houston, Texas. 

24) `Hierarchical Fragmentation and Star Formation' (seminar), DTM, Carnegie Institution of Washington, D.C. 

25) `Hierarchical Fragmentation and Star Formation' (invited talk), Goddard/Maryland IR Seminar, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

26) `The Formation and Growth of Deep Mantle Plumes' (contributed talk), Spring Meeting of the American Geophysical Union, Baltimore, Maryland. 

27) `Finite-Amplitude Models of the Early Evolution of the Earth' (contributed talk), XVIII General Assembly of the IUGG, Hamburg, Germany. 

28) `Finite-Amplitude Models of the Formation and Growth of Deep Mantle Plumes' (contributed talk), XVIII General Assembly of the IUGG, Hamburg, Germany. 

29) `The Role of Turbulent Viscosity in Solar Nebula Models' (seminar), Solar System Cosmogony Group, DTM, Carnegie Institution of Washington, D.C.

1984

30) `Three Dimensional Calculations of the Formation of the Presolar Nebula from Slowly Rotating Clouds' (poster), Protostars and Planets II, Tucson, Arizona. 

31) `The Core of the Earth and related topics' (radio), Four taped broadcasts for the Carnegie Institution's Perspectives in Science Series, Washington, D.C. 

32) `Two Problems in Mantle Convection' (invited seminar), Geodynamics Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

33) `Mantle Convection' (invited seminar), Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C. 

34) `Differentiating between the Formation of Single and Binary Protostars' (contributed talk), 164th Meeting of the American Astronomical Society, Baltimore, Maryland. 

35) `Hierarchical Fragmentation and Star Formation' (invited seminar), Astronomy Department, University of Maryland, College Park, Maryland. 

36) `3D Models of the Formation of the Presolar Nebula' (contributed talk), 16th Meeting of the Division for Planetary Sciences, Kona, Hawaii. 

37) `Tidal Disruption, the Dynamic Fission Instability, and the Origin of the Moon' (contributed talk), Conference on the Origin of the Moon, Kona, Hawaii.

1985

38) `The Formation of Single Stars' (seminar), Solar System Cosmogony Group, DTM, Carnegie Institution of Washington, Washington, D.C. 

39) `Collapse Calculations and Hierarchical Star Formation' (invited seminar), Department of Physics and Astronomy and Space Telescope Science Institute, Johns Hopkins University, Baltimore, Maryland. 

40) `The Origin of the Moon' (invited talk), Board of Trustees Meeting, Carnegie Institution of Washington, Washington, D.C. 

41) `High Spatial Resolution Models of Time Dependent, Layered Mantle Convection' (contributed talk), Spring Meeting of the American Geophysical Union, Baltimore, Maryland. 

42) `Spatial-Velocity Maps, Retrograde Rotation, and Binary Protostellar Clouds' (poster), 166th Meeting of the American Astronomical Society, Charlottesville, Virginia. 

43) `Hierarchical Fragmentation and Observations' (discussion group), Workshop on Molecular Clouds and Star Formation, Institute for Theoretical Physics, University of California, Santa Barbara, California. 

44) `Protostellar Collapse and Hierarchical Fragmentation' (invited talk), Workshop on Molecular Clouds and Star Formation, Institute for Theoretical Physics, University of California, Santa Barbara, California.

45) `The Minimum Protostellar Mass' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

46) `Theoretical Determination of the Minimum Protostellar Mass' (contributed talk), Workshop on the Astrophysics of Brown Dwarfs, George Mason University, Fairfax, Virginia. 

47) `Observational and Theoretical Studies of the Formation of Single, Solar-type Stars' (seminar), Solar System Cosmogony Group, DTM, Carnegie Institution of Washington, Washington, D.C. 

48) `Protoearth Mass Shedding and the Origin of the Moon' (contributed talk), 17th Meeting of the Division for Planetary Sciences, Baltimore, Maryland. 

49) `Transient Layers of Convection and the Early Earth' (seminar), Solar System Cosmogony Group, DTM, Carnegie Institution of Washington, Washington, D.C.

1986

50) `Solar System Formation' (talk), Joint Visiting Committee of DTM and the Geophysical Laboratory of the Carnegie Institution of Washington, Washington, D.C. 

51) `The Minimum Protostellar Mass' (invited seminar), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

52) `The Origin of the Moon' (invited seminar), Department of Earth and Space Sciences, University of California, Los Angeles. 

53) `The Minimum Protostellar Mass' (poster), Stellar Populations Meeting, Space Telescope Science Institute, Baltimore, Maryland. 

54) `Origin of the Moon' (radio broadcast), Quirks and Quarks network science series, Canadian Broadcasting Company. 

55) `Theory of Collapse and Protostar Formation' (invited review), Symposium on Interstellar Processes, Grand Teton National Park, Wyoming. 

56) `Origin of the Moon' (public lecture), Cleveland Astronomical Society, Cleveland, Ohio. 

57) `Theory of Protostellar Collapse' (invited seminar), Departments of Physics and Astronomy, Case-Western Reserve University, Cleveland, Ohio. 

58) `Formation of Giant versus Terrestrial Planets' (invited talk), NASA Workshop on the Origins of Solar Systems, Wye Plantation, Maryland.

1987

59) `The Origin of the Moon' (invited seminar), Princeton University Observatory, Princeton, New Jersey. 

60) `Models of the Structure and Evolution of the Solar Nebula' (invited review), Origin and Evolution of Planetary and Satellite Atmospheres Conference, Tucson, Arizona. 

61) `Theory of Protostellar Collapse' (invited seminar), Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Canada. 

62) `Origin of the Moon' (invited seminar), Department of Astronomy, University of Toronto, Toronto, Canada. 

63) `Bipolar flows, molecular gas disks, and the collapse and accretion of rotating interstellar clouds' (poster), NATO Advanced Study Institute on Galactic and Extragalactic Star Formation, Whistler, British Columbia, Canada. 

64) `Star Formation and the Solar System' (panel discussion), NATO Advanced Study Institute on Galactic and Extragalactic Star Formation, Whistler, British Columbia, Canada. 

65) `Dynamics of Disks' (invited talk), Workshop on Star Formation, Center for Star Formation Studies, University of California, Santa Cruz, California. 

66) `Formation and Evolution of Protostellar Nebulae' (invited review), Center for Astrophysical Sciences and Space Telescope Science Institute, Johns Hopkins University, Baltimore, Maryland. 

67) `Formation and Evolution of Protostellar Nebulae' (discussion session), Center for Astrophysical Sciences and Space Telescope Science Institute, Johns Hopkins University, Baltimore, Maryland. 

68) `Theory of Protostellar Collapse' (invited seminar), Department of Physics, New York University, New York, New York. 

69) `Protostellar Collapse and Star Formation' (colloquium), Applied Physics Laboratory of the Johns Hopkins University, Laurel, Maryland.

1988

70) `Angular Momentum Transport by Gravitational Torques in the Early Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XIX, Houston, Texas. 

71) `Protostellar Collapse and Star Formation' (invited seminar), Theoretical Astrophysics Group, University of Arizona, Tucson, Arizona. 

72) `The Early Solar Nebula' (invited seminar), Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona. 

73) `Origin of the Moon' (invited seminar), Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona. 

74) `Origin of the Moon' (invited seminar), IMMPACT series, U. S. Geological Survey, Reston, Virginia. 

75) `Three Dimensional Evolution of the Solar Nebula' (poster), Formation and Evolution of Planetary Systems, Space Telescope Science Institute, Baltimore, Maryland. 

76) `Dynamics and Thermodynamics of the Early Solar Nebula' (invited seminar), Department of Geophysical Sciences, University of Chicago, Chicago, Illinois. 

77) `Jupiter Formation' (joint discussion), DTM, Carnegie Institution of Washington, Washington, D.C. 

78) `Solar Nebula Evolution' (joint discussion), DTM, Carnegie Institution of Washington, Washington, D.C. 

79) `Angular Momentum Transport in the Early Solar Nebula' (contributed talk), Nineteenth Meeting of the Division on Dynamical Astronomy, Gaithersburg, Maryland. 

80) `3D Hydrodynamics and Radiative Transfer' (poster), IAU Colloquium 109: Applications of Computer Technology to Dynamical Astronomy, Gaithersburg, Maryland. 

81) `Cloud Collapse and Fragmentation' (invited review), Joint Discussion on Formation and Evolution of Stars in Binary Systems, 20th IAU General Assembly, Baltimore, Maryland. 

82) `Fission vs. Fragmentation' (contributed review), Joint Session on Formation of Close and Wide Binaries, 20th IAU General Assembly, Baltimore, Maryland. 

83) `Tidal Disruption and Protoearth Mass Shedding' (television segments on lunar origin), `Quark' Science Series of the Italian National Television Network. 

84) `Dynamics and Thermodynamics of the Solar Nebula' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

85) `Solar Nebula Models' (invited seminar), Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts. 

86) `Binary Star Formation' (invited seminar), Optical - Infrared Group, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts. 

87) `Rapid Jupiter Formation and the Early Solar Nebula' (contributed talk), 20th Meeting of the Division for Planetary Sciences, Austin, Texas. 

88) `Dynamics and Thermodynamics of the Solar Nebula' (invited colloquium), Space Science Division, NASA Ames Research Center, Moffett Field, California. 

89) `3D Solar Nebula Models: Implications for Earth Origin' (contributed talk), Origin of the Earth Conference, Berkeley, California.

1989

90) `Three Dimensional Evolution of the Early Solar Nebula' (invited talk), NAS-ASUSSR Workshop on Planetary Sciences, Moscow, USSR. 

91) `Protostellar Hiccups' (talk), Visiting Committee, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

92) `Dynamics and Thermodynamics of the Solar Nebula' (invited colloquium), Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan. 

93) `Dynamics and Thermodynamics of the Solar Nebula' (invited colloquium), Department of Geological Sciences, Rutgers University, New Brunswick, New Jersey. 

94) `Surface Densities and Temperature Profiles in the Early Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XX, Houston, Texas. 

95) `Nonisothermal Fragmentation' (invited review), Workshop on Physical Processes in Fragmentation and Star Formation, Monteporzio Catone, Italy. 

96) `The Formation of Planetary Systems' (invited review), Centennial Meeting of the Astronomical Society of the Pacific, University of California, Berkeley, California. 

97) `3D Models of Binary Fragmentation, Protostellar Core Hiccups, and the Solar Nebula' (invited talk), Workshop of the Center for Star Formation Studies, University of California, Santa Cruz, California. 

98) `Tidal Disruption of Inviscid Protoplanets' (contributed talk), 21st Meeting of the Division for Planetary Sciences, Providence, Rhode Island.

1990

99) `Fission Instability During Inner Core Formation' (contributed talk), 175th Meeting of the American Astronomical Society, Washington, D.C. 

100) `Characteristics of Solar System Nebulae' (invited talk), Planetary Systems Science Working Group, Houston, Texas. 

101) `Tidal Disruption of Inviscid Protoplanets' (contributed talk), Lunar and Planetary Science Conference XXI, Houston, Texas. 

102) `Fragmentation of Collapsing Molecular Cloud Cores and Formation of Unequal Mass Binaries' (poster paper), Protostars and Planets III Conference, Tucson, Arizona. 

103) `Binary Star Formation' (invited colloquium), Five Colleges Astronomy Department, University of Massachusetts, Amherst, Massachusetts. 

104) `Theory: Star Formation' (invited review), Atoms, Ions, and Molecules: New Results in Spectral Line Astrophysics, Third Haystack Conference, Westford, Massachusetts. 

105) `Science Overview: Towards Observations of Planetary Systems' (presentation), Planetary Systems Science Working Group meeting with Geoffrey Briggs, Director, Solar System Exploration Division, NASA, Washington, D.C. 

106) `Binary Star Formation' (invited seminar), BIMA Group, Astronomy Program, University of Maryland, College Park, Maryland. 

107) `Science Overview: Towards Observations of Planetary Systems' (presentation), Planetary Systems Science Working Group meeting with L.~A.~Fisk, Associate Administrator, Office of Space Science and Application, NASA, Washington, D.C. 

108) `Potential Science' (invited review), Planetary Science and Exploration Mini-Symposium on Extrasolar Systems, Jet Propulsion Laboratory, Pasadena, California. 

109) `Isotopic Anomalies and the Solar Nebula' (invited review), Workshop on Isotopic Anomalies, Clemson University, Clemson, South Carolina.

1991

110) `Binary Star Formation: Observation Confronts Theory' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

111) `Science Overview: Towards Observations of Planetary Systems' (presentation), NASA Solar System Exploration Subcommittee Strategic Planning Workshop, La Jolla, California. 

112) `Second-Order Accurate Models of Solar Nebula Formation' (contributed talk), Lunar and Planetary Science Conference XXII, Houston, Texas. 

113) `Interstellar Gas Collapse Calculations' (invited review), Gordon Research Conference on the Origins of Solar Systems, New London, New Hampshire. 

114) `Numerical Models of the Formation of the Solar System' (invited talk), Origin and Evolution of the Solar System, O.~Schmidt Institute of the Physics of the Earth, Moscow, USSR. 

115) `Formation and Fragmentation of Protostellar and Protoplanetary Disks' (invited talk), Seventh Annual Workshop on Nonlinear Astronomy, University of Florida, Gainesville, Florida. 

116) `Origin of the Moon' (public lecture), National Capital Astronomers Association, Washington, D.C. 

117) `Binary Star Formation: Theory Confronts Observations' (invited colloquium), E. O. Hulburt Center for Space Research, Space Science Division, Naval Research Laboratory, Washington, D.C. 

118) `Solar Nebula Formation' (invited seminar), Formation and Evolution of Planetary Systems Seminar Series, NASA Goddard Space Flight Center, Greenbelt, Maryland.

1992

119) `Formation of the Solar Nebula' (invited seminar), Department of Astronomy and Astrophysics, University of Pennsylvania, Philadelphia, Pennsylvania. 

120) `Thermal Structure of the Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XXIII, Houston, Texas. 

121) `The Fragmentation Mechanism' (invited review), IAU Colloquium # 135, Complementary Approaches to Double and Multiple Star Research, Pine Mountain, Georgia. 

122) `Second-Order Accurate Models of Collapse and Fragmentation of Molecular Clouds' (invited talk), Center for Star Formation Studies Workshop, University of California, Berkeley, California.

123) `Solar Nebula Temperatures' (contributed talk), Dispersal of Protoplanetary Disks Workshop, Institute for Theoretical Physics, University of California, Santa Barbara, California. 

124) `Formation of Stars and Planetary Systems' (invited lecture), Fourth Summer School for Planetary Science (The Search for Other Worlds), California Institute of Technology, Pasadena, California. 

125) `Moon Making (The Origin of the Moon)' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

126) `Formation of Late-Phase Protoplanetary Disks' (contributed paper), First International Conference on Planetary Systems: Formation, Evolution, and Detection, California Institute of Technology, Pasadena, California.

1993

127) `Midplane Temperatures in the Solar Nebula' (contributed paper), Lunar and Planetary Science Conference XXIV, Houston, Texas. 

128) `Initiating Solar System Formation Through Stellar Shock Waves' (poster paper), Lunar and Planetary Science Conference XXIV, Houston, Texas. 

129) `Formation and Structure of Protoplanetary Disks' (invited review), Harvard-Smithsonian Center for Astrophysics Internal Symposium on Star Formation, Cambridge, Massachusetts. 

130) `Cloud Collapse and Fragmentation I. Observations' (invited overview), The Physics of a Dynamic Interstellar Medium, Aspen Center for Physics, Aspen, Colorado. 

131) `Cloud Collapse and Fragmentation II. Theory' (invited overview), The Physics of a Dynamic Interstellar Medium, Aspen Center for Physics, Aspen, Colorado. 

132) `Spectral Appearance and Thermal Structure of a Protoplanetary Disk' (contributed poster), Gordon Conference on the Origins of Solar Systems, Colby-Sawyer College, New London, New Hampshire. 

133) `Stellar Shock Waves, Presolar Grains, and the Solar Nebula' (contributed poster), Gordon Conference on the Origins of Solar Systems, Colby-Sawyer College, New London, New Hampshire. 

134) `Protoplanetary Disks' (invited seminar), Lunar and Planetary Institute, Houston, Texas. 

135) `Protoplanetary Disks' (invited seminar), Max Planck Gesellschaft Arbeitsgruppe, Universitat Jena, Germany. 

136) `Protoplanetary Disks' (invited seminar), Max Planck Institut fur Chemie, Mainz, Germany. 

137) `Formation and Evolution of Protoplanetary Accretion Disks' (invited `keynote speech'), Workshop on Small Bodies of the Solar System: Origin, Evolution, and Significance for the Formation of Planets, German Science Foundation, Neustadt, Germany. 

138) `Protoplanetary Disks' (invited review), Kingston Meeting on Young Circumstellar Disks, University of Montreal, Montreal, Canada. 

139) `Molecular Cloud Cores and Stellar Shock Waves' (contributed talk), Workshop on Isotopic Anomalies, Washington University, St. Louis, Missouri. 

140) `Protoplanetary Disks: Making Extra-Solar Planets Disappear' (seminar), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

141) `Multiple Protostar Formation' (poster talk), Second International Conference on Planetary Systems: Formation, Evolution, and Detection, Waikoloa, Hawaii.

1994

142) `Multiple Protostar Formation' (contributed talk), 183rd. Meeting of the American Astronomical Society, Washington, D.C. 

143) `Protoplanetary Disks' (invited colloquium), Department of Astronomy, University of Virginia, Charlottesville, Virginia. 

144) `Injection of Presolar Grains into the Solar Nebula by a Stellar Shock Wave' (contributed talk), Lunar and Planetary Science Conference XXV, Houston, Texas. 

145) `Midplane Temperatures and Solar Nebula Evolution' (contributed talk), Lunar and Planetary Science Conference XXV, Houston, Texas. 

146) `Stellar Shock Waves and Solar Nebula Formation' (talk), Visiting Committee, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C.

147) `Outside-In Protostellar Collapse' (invited talk), Theoretical Astrophysics Program, University of Arizona, Tucson, Arizona. 

148) `Hot Times in the Old Solar Nebula' (invited colloquium), Theoretical Astrophysics Program, University of Arizona, Tucson, Arizona. 

149) `Large Scale Processes in the Solar Nebula' (invited talk), Conference on Chondrules and the Protoplanetary Disk, University of New Mexico, Albuquerque, New Mexico. 

150) `Astrophysical Constraints on Chondrule Origins' (conference summary talk), Conference on Chondrules and the Protoplanetary Disk, University of New Mexico, Albuquerque, New Mexico. 

151) `Protoplanetary Disks, Mid-IR Dips, and Disk Gaps' (contributed talk), 26th Meeting of the Division for Planetary Sciences, Washington, D.C. 

152) `Gravitational Collapse and Protostars' (invited review), Conference on Circumstellar Disks, Outflows, and Star Formation, Cozumel, Mexico.

1995

153) `Outside-In Protostellar Collapse' (invited colloquium), Department of Astronomy, Indiana University, Bloomington, Indiana. 

154) `Extrasolar Jupiters' (radio interview), Discovery series, British Broadcasting Corporation, London, England. 

155) `Thermal Profiles in Protoplanetary Disks' (contributed talk), Lunar and Planetary Science Conference XXVI, Houston, Texas. 

156) `Observable Aspects of Planet Formation' (invited talk), Exploration of Neighboring Planetary Systems Workshop, Jet Propulsion Laboratory, Pasadena, California. 

157) `Outside-In Protostellar Collapse' (contributed talk), Division on Dynamical Astronomy Meeting, Yosemite National Park, California. 

158) `The Formation and Early Evolution of Stars' (invited talk), Galactic Star Formation and Early Stellar Evolution Workshop, Ringberg Castle, Germany. 

159) `Formation of the Protosolar Nebula' (invited review), Gordon Conference on the Origin of Solar Systems, New London, New Hampshire. 

160) `Thermal Heterogeneity in the Solar Nebula: Paradox?' (contributed talk), 58th. Meteoritical Society Meeting, Washington, D.C. 

161) `The Formation of Stars and Planets' (invited review), Exploration of Neighboring Planetary Systems presentation to the Townes Blue Ribbon Committee, Jet Propulsion Laboratory, Pasadena, California.

1996

162) `Extrasolar Planets' and `Planet Formation' (multiple radio broadcasts), Discovery series, British Broadcasting Corporation, London, England. 

163) `Discovering New Planets' (television documentary), Horizons series, British Broadcasting Corporation, London, England. 

164) `Life on Jupiter' (live television broadcast), In Depth show, America's Talking Cable Network (CNBC), Washington, D.C. 

165) `Origin of the Moon Revisited' (radio interview), Quirks and Quarks series, Canadian Broadcasting Corporation, Toronto, Canada. 

166) `New Planets Found' (radio interview), KCMU radio, Seattle, Washington. 

167) `Formation of Jupiter-Like Planets Around Solar-Type Stars' (press conference and poster paper), 187th. Meeting of the American Astronomical Society, San Antonio, Texas. 

168) `Formation of 51 Peg B' (invited press briefing), Foreign Press Corps, United States Information Agency, National Press Building, Washington, D.C. 

169) `Extrasolar Planets' (live radio broadcast), CJAD radio station, Montreal, Canada. 

170) `The Birth of Stars' (invited seminar), American Association for the Advancement of Science Annual Meeting, Baltimore, Maryland. 

171) `Giant Planet Formation' (invited seminar), Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C. 

172) `Gravitational Collapse and Binary Star Formation' (invited colloquium), Center for Computational Sciences, University of Kentucky, Lexington, Kentucky. 

173) `Giant Planet Formation' (invited seminar), Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky. 

174) `The Formation of Planetary Systems' (invited review), Workshop on Infrared Space Interferometry: Astrophysics and the Study of Earth-like Planets, Toledo, Spain. 

175) `Searching for Earth-like Planets' (press conference), Workshop on Infrared Space Interferometry: Astrophysics and the Study of Earth-like Planets, Toledo, Spain. 

176) `Nonaxisymmetry in the Solar Nebula: Disk Evolution or Giant Gaseous Protoplanet Formation?' (contributed talk), Lunar and Planetary Science Conference XXVII, Houston, Texas. 

177) `Life on Other Worlds' (television interview), John McLaughlin's One on One Interview show, NBC's WRC (channel 4) and PBS stations nationwide, Washington, D.C. 

178) `Binary Stars: Formation by Fragmentation' (invited talk), Division on Dynamical Astronomy Meeting, Washington, D.C. 

179) `Gravitational Collapse and Binary Star Formation' (invited colloquium), T. J. Watson Research Center, IBM, Yorktown Heights, New York. 

180) `Binaries and Their Environments: Theory' (superchair's comments), Planetary Formation in the Binary Environment conference, State University of New York, Stony Brook. 

181) `Giant Gaseous Protoplanet Formation?' (poster paper), Planetary Formation in the Binary Environment conference, State University of New York, Stony Brook. 

182) `Fragmentation in Collapsing Clouds: Models' (invited talk), Star Formation Workshop 96: Star Formation in Clusters, Wellesley College, Massachusetts. 

183) `Extrasolar Planets' (radio interview), Current Affairs program, Australian Broadcasting Corporation, Australia. 

184) `Giant Gaseous Protoplanet Formation?' (poster paper), 28th. Meeting of the Division of Planetary Sciences, Tucson, Arizona. 

185) `Injection and Mixing of Material into the Early Solar System' (invited talk), Astrophysical Implications of the Laboratory Study of Presolar Materials conference, Washington University, St. Louis, Missouri. 

186) `Finding and Forming Extrasolar Giant Planets and Brown Dwarfs' (public lecture), Capital Science Lecture Series, Carnegie Institution of Washington, Washington, D.C. 

187) `Shock-Induced Star Formation (television interview), Japanese cable television science program.

1997

188) `Extrasolar Planets' (invited colloquium), Department of Physics, Drexel University, Philadelphia, Pennsylvania. 

189) `Extrasolar Planets' (invited colloquium), Department of Physics and Astronomy, University of Rochester, New York. 

190) `Triggering Solar System Formation' (invited seminar), Department of Physics, Clemson University, Clemson, South Carolina. 

191) `Extrasolar Planets' (invited colloquium), Department of Physics, Clemson University, Clemson, South Carolina. 

192) `Formation of Giant Gaseous Protoplanets by Gravitational Instability' (contributed talk), Lunar and Planetary Science Conference XXVIII, Houston, Texas. 

193) `Injection of Radioactive Nuclides from the Stellar Source that Triggered the Collapse of the Presolar Cloud Core', (contributed talk), Lunar and Planetary Science Conference XXVIII, Houston, Texas. 

194) `The Search for Extrasolar Planets' (invited colloquium), Departments of Mathematics and Geology, University of South Florida, Tampa, Florida. 

195) `Extrasolar Planets' (invited seminar), Planetary Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

196) `Extrasolar Planets and Brown Dwarfs' (invited talk), Astrophysics Division, American Physical Society General Meeting, Washington, D.C. 

197) `Protoplanetary Disks Origins' (invited review), International Origins Conference, Estes Park, Colorado. 

198) `Giant Gaseous Protoplanet Formation' (poster), Gordon Research Conference on Origins of Solar Systems, New England College, New Hampshire. 

199) `Extrasolar Planets' (radio interview), Swedish Broadcast Corporation. 

200) `Protostars and Protoplanetary Disks' (invited review), ISO's View on Stellar Evolution, Noordwijkerhout, The Netherlands. 

201) `Chondrule Formation in Solar Nebula Shock Waves: The Role of Giant Gaseous Protoplanets' (contributed talk), Meteoritical Society Meeting, Maui, Hawaii. 

202) `Extrasolar Planets' (public lecture), National Capital Astronomers Association, Washington, D.C. 

203) `Extrasolar Planets' (invited colloquium), Naval Research Laboratory, Washington, D.C. 

204) `Forming Solar Systems, Here and Elsewhere' (public lecture), Nobel Conference XXXIII ``The New Solar System'', Gustavus Aldolphus College, Saint Peter, Minnesota.

1998

205) `Giant Planet Formation and Wobbling Protostars' (contributed talk), American Astronomical Society Meeting, Washington, D.C. 

206) `Extrasolar Planets' (invited colloquium), Space Telescope Science Institute, Baltimore, Maryland. 

207) `Giant Planet Formation and Wobbling Protostars' (contributed talk), Lunar and Planetary Science Conference XXIX, Houston, Texas. 

208) `Injection of Lagging Short-Lived Isotopes into the Presolar Cloud' (poster), Lunar and Planetary Science Conference XXIX, Houston, Texas. 

209) `Extrasolar Planets' (public lecture), The Behrend College, Pennsylvania State University, Erie, Pennsylvania. 

210) `Extrasolar Planets' (invited colloquium), Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, Colorado. 

211) `Formation of Extrasolar Giant Planets: Core Accretion or Disk Instability?' (invited review), Euroconference on Extrasolar Planets: Formation, Detection, and Modelling, Lisbon, Portugal. 

212) `NASA and the Search for Extrasolar Planets' (invited review), Euroconference on Extrasolar Planets: Formation, Detection, and Modelling, Lisbon, Portugal. 

213) `First Image of a Possible Extrasolar Planet' (live televised press conference), Space Science Update, NASA Headquarters, Washington, D.C. 

214) `First Image of a Possible Extrasolar Planet' (television interview), Discovery News, ABC's Discovery Cable Channel. 

215) `Magnetic Cloud Collapse and Fragmentation' (contributed poster), Protostars and Planets IV conference, Santa Barbara, California. 

216) `Giant Gaseous Protoplanet Formation' (contributed talk), Workshop on Planet Formation, Institute for Theoretical Physics, Santa Barbara, California. 

217) `Extrasolar Planet Formation' (talk), Visiting Committee, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

218) `Giant Planet Formation, Here and Elsewhere' (colloquium), Physics and Astronomy Department, University of Kentucky, Lexington, Kentucky. 

219) `Collapse and Fragmentation of Magnetically-Supported Molecular Cloud Cores' (invited review), Workshop on Gravitational Collapse, Canadian Institute for Theoretical Astrophysics, Toronto, Canada. 

220) `Looking for Earths' (public lecture), Bibelot Bookstore, Timonium, Maryland. 

221) `Giant Planet Formation Induced by a Binary Star Companion' (contributed talk), Division for Planetary Sciences Meeting, Madison, Wisconsin. 

222) `Extrasolar Planets and Brown Dwarf Stars' (invited talk), Division for Planetary Sciences Meeting, Madison, Wisconsin. 

223) `Extrasolar Planets' (colloquium), Department of Geophysical Sciences, University of Chicago, Chicago, Illinois. 

224) `Two New Planets' (live radio interview), Talk to America Show, Voice of America Network, Washington, D.C. 

225) `Extrasolar Planets' (colloquium), Department of Astronomy, University of Virginia, Charlottesville, Virginia. 

226) `Extrasolar Planets' (public lecture), Smithsonian Associates Lecture Program: Frontiers in Astronomy, Smithsonian Institution, Washington, D.C. 

227) `Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C.

1999

228) `Future IR/Submm Programs: Star and Planet Formation' (invited talk), 193rd. American Astronomical Society Meeting, Austin, Texas. 

229) `Looking for Earths' (radio interview), Todd Mundt Show, National Public Radio, University of Michigan. 

230) `Finding and Forming Giant Planets' (colloquium), United States Naval Observatory, Washington, D.C. 

231) `Extrasolar Planets' (live radio show), The Edge of Reality, Talk America Radio Network. 

232) `Planets Outside the Solar System' (public lecture), Sandy Spring Friends Home, Sandy Spring, Maryland. 

233) `Star and Planet Formation' (invited talk), Submillimeter Space Astronomy in the Next Millenium, University of Maryland, College Park, Maryland. 

234) `Triggering Protostellar Collapse, Injection, and Disk Formation' (invited talk), Dust to Terrestrial Planets workshop, International Space Science Institute, Bern, Switzerland. 

235) `NASA's Origins Program: Planet Detection and Star Formation' (invited lecture), Woodrow Wilson School of Public Policy, Princeton University, New Jersey. 

236) `Giant Planet Formation by Disk Instability' (contributed talk), Lunar and Planetary Science Conference XXX, Houston, Texas. 

237) `Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), Astronomy Program, University of Maryland, College Park, Maryland. 

238) `Planets Outside the Solar System' (keynote speech), CMD Realty Investors Inc. Annual Meeting, Scottsdale, Arizona. 

239) `The First Extrasolar Planetary System' (radio interview), All Things Considered, National Public Radio, Washington, D.C. 

240) `The First Extrasolar Planetary System' (television interview), ABC News (nationally syndicated). 

241) `The First Extrasolar Planetary System' (live radio interview), Dave Stefan's Good Day Show (nationally syndicated). 

242) `The First Extrasolar Planetary System' (live radio talk show), The Bob (Christopher) Show, Station WWL, New Orleans, Louisiana. 

243) `Binary Star Formation in Magnetic Molecular Clouds' (invited talk), Division on Dynamical Astronomy Meeting, American Astronomical Society, Estes Park, Colorado. 

244) `Giant Planet Formation' (invited talk), Board of Trustees Meeting, Carnegie Institution of Washington, Washington, D.C. 

245) `Formation and Abundance of Planets: What Might Be Out There?' (invited talk), Pale Blue Dot 2 workshop, NASA Ames Research Center, Moffett Field, California. 

246) `Giant Planet Formation' (poster), Gordon Research Conference on the Origins of Solar Systems, New England College, Henniker, New Hampshire. 

247) `Collapse and Fragmentation of Magnetic Molecular Cloud Cores' (invited talk), Star Formation 1999, Nagoya University, Nagoya, Japan. 

248) `Review of Poster Presentations' (invited review), Star Formation 1999, Nagoya University, Nagoya, Japan. 

249) `Planets Outside the Solar System' (lecture), Astronomy Across the Curriculum Teacher Workshop, Washington, D.C. 

250) `Recent Startling Discoveries of the First Planets Outside the Solar System' (public speech), Scientific Commemoration of the XXX Anniversary of the First Lunar Landing, Madrid, Spain. 

251) `Rapid Giant Planet Formation' (contributed talk), Bioastronomy 99, Kohala Coast, Hawaii. 

252) `Origins of Stars and Planetary Systems' (invited seminar), Space Science Lecture Series, Office of Space Science, NASA Headquarters, Washington, D.C. 

253) `The Formation of Planets' (invited review), Science with the Atacama Large Millimeter Array, Carnegie Institution of Washington, Washington, D.C. 

254) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (invited talk), Center for Star Formation Studies Workshop, NASA Ames Research Center, Moffett Field, California.

255) `The Triggered Origin of the Solar System', (seminar), Institute for Astronomy, University of Hawaii, Manoa, Hawaii. 

256) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), Institute for Astronomy, University of Hawaii, Manoa, Hawaii. 

257) `Extrasolar Planets' (colloquium), Department of Physics and Astronomy, State University of New York, Stony Brook. 

258) `Extrasolar Planets' (colloquium), University of New Mexico, Albuquerque, New Mexico. 

259) `The Triggered Origin of the Solar System' (seminar), University of New Mexico, Albuquerque, New Mexico. 

260) `Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts. 

261) `Six New Planets' (radio interview), KQED Radio, San Francisco, California.

2000

262) `From Disks to Planets' (invited overview), Euroconference on Disks, Planetesimals, and Planets, Puerto de la Cruz, Tenerife, Spain. 

263) `The Triggered Origin of the Solar System' (seminar), Theoretical Astrophysics Program, University of Arizona, Tucson, Arizona. 

264) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), Theoretical Astrophysics Program, University of Arizona, Tucson, Arizona. 

265) `Extrasolar Planets' (seminar), NASA Astrobiology Oversight Committee, NASA Headquarters, Washington, D.C. 

266) `Extrasolar Planets' (seminar), Origins of Life Seminar Series, New York Center for Studies on the Origins of Life, Albany, New York. 

267) `Extrasolar Planets' (radio interview), WAMC Public Radio Station, Albany, New York. 

268) `Technology and Discovery in Astronomy' (public forum), Reflections on Science: Public Forums on the Meaning of Science, Washington, D.C. 

269) `Shock-Wave Heating and Clump Formation in a Minimum Mass Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XXXI, Houston, Texas. 

270) `Extrasolar Planets' (George C. Benson Memorial Public Lecture), Physics Department, Miami University, Oxford, Ohio. 

271) `First Sub-Saturn-Mass Extrasolar Planets' (live televised press conference), Space Science Update, NASA Headquarters, Washington, D.C. 

272) `Gas Giant Planet Formation and the Implications for Habitable Planets' (invited plenary talk), First Annual Astrobiology Science Conference, NASA Ames Research Center, Moffett Field, California. 

273) `Impact of Magnetic Fields on Fragmentation' (invited talk), IAU Symposium 200 -- The Formation of Binary Stars , Potsdam, Germany. 

274) `Scientific Context of TPF: Exo-Earth Goals' (team talk), Ball/TPF Science Team Meeting, Space Telescope Science Institute, Baltimore, Maryland. 

275) `Looking for Earths' (television interview), ``Science Science'' (The Kenneth Fox Show), Bowie Community Television. 

276) `Massive Planet Formation Through Disk Instability' (invited talk), Star Formation 2000: From Protostellar Cores to Stars and Planetary Systems, Ringberg Castle, Germany. 

277) `Terrestrial Planet Detection by Occultations' (team talk), Ball/TPF Science Team Meeting, Space Telescope Science Institute, Baltimore, Maryland. 

278) `Modes of Gas Giant Planet Formation' (invited talk), IAU Symposium 202 -- Planetary Systems in the Universe -- Observation, Formation, and Evolution, Manchester, England. 

279) `Gas Giant Planet Formation and the Implications for Habitable Planets' (invited review), Astrobiology: Life in the Universe Symposium, Dept. of Molecular, Cellular, and Developmental Biology, University of Colorado at Boulder, Colorado. 

280) `Extrasolar Planets' (invited colloquium), Department of Mineral Sciences, Museum of Natural History, Smithsonian Institution, Washington, D.C. 

281) `Frontiers: The Search for Extrasolar Systems' (radio interview), British Broadcasting Company, Radio 4. 

282) `Rapid Formation of Gas Giant Protoplanets by Disk Instability' (contributed talk), 32nd. Meeting of the Division for Planetary Sciences, Pasadena, California.

2001

283) `Rapid Gas Giant Protoplanet Formation' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

284) `Extrasolar Planets' (colloquium), Department of Physics and Astronomy, Northwestern University, Chicago, Illinois. 

285) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (seminar), Department of Physics and Astronomy, Northwestern University, Chicago, Illinois. 

286) `New Extrasolar Planets' (radio talk show), Station WLS, Chicago, Illinois. 

287) `Injection of newly-synthesized elements into protosolar material' (invited review), Royal Society Discussion Meeting on the Origin and Early Evolution of Solid Matter in the Solar System, London, England. 

288) `Gas Giant Protoplanet Formation: Disk Instability Models with Detailed Thermodynamics and Radiative Transfer', (contributed talk), Lunar and Planetary Science Conference XXXII, Houston, Texas. 

289) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (seminar), Department of Physics and Astronomy, University of Rochester, New York. 

290) `Gas Giant Protoplanet Formation: Rapid or Slow?' (poster), Second NASA Astrobiology Institute General Meeting, Carnegie Institution of Washington, Washington, D.C. 

291) `Orion Planet Formation: Rapid or Rare?' (videotaped press release), Office of Space Science, NASA Headquarters, Washington, D.C. 

292) `Looking for Earths: The Race to Find New Solar Systems' (invited lecture), Learning in Retirement Institute, George Mason University, Fairfax, Virginia. 

293) `Gas Giant Protoplanet Formation: Rapid or Slow?' (poster), Gordon Research Conference on Origins of Solar Systems, Connecticut College, New London, Connecticut. 

294) `Outstanding Problems: Theory' (panel discussion), Gordon Research Conference on Origins of Solar Systems, Connecticut College, New London, Connecticut. 

295) `Fire and Ice: Sizzling Comets Around a Dying Star' (live televised press conference), Space Science Update, NASA Headquarters, Washington, D.C. 

296) `Protostellar disk formation and the formation of protoplanets' (invited review), 15th University College London Astronomical Colloquium, `Disks in Star and Planet Formation', Windsor Great Park, England. 

297) `Results of Senior Review' (committee presentation), NASA Planetary Geology and Geophysics Management Operations Working Group, Washington, D.C. 

298) `Preservation of Isotopic Heterogeneity in the Solar Nebula' (contributed talk), Meteoritical Society Meeting, Pontifical Gregorian Academy, Rome, Italy. 

299) `Formation of Extrasolar Planets' (invited review), Astrokazan 2001 International Conference, Kazan State University, Kazan, Russia. 

300) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (seminar), Department of Physics and Astronomy, Arizona State University, Tempe, Arizona. 

301) `Brown Dwarfs and Gas Giant Planets -- Keys to Stellar and Planetary Origins' (sales pitch), Full-Sky Astrometric Mapping Explorer Mission Confirmation Review, Naval Research Laboratory, Washington, D.C. 

302) `Gas Giant Planet Formation: Core Accretion or Disk Instability?' (colloquium), United States Naval Observatory, Washington, D.C. 

303) `First Detection of an Atmosphere of an Extrasolar Planet' (live televised press conference), Space Science Update, NASA Headquarters, Washington, D.C. 

304) `The Discovery of New Planetary Systems' (lecture), Jornadas de Astrobiologia, CosmoCaixa Science Museum, Madrid, Spain. 

305) `Extrasolar Planet Searches' (television documentary interview), Divulga S. L., Madrid, Spain. 

306) `The Race to Find New Solar Systems' (public lecture), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C.

2002

307) `Adaptive Optics Detections of Protoplanets and Disks' (press conference), 199th Meeting of the American Astronomical Society, Washington, D.C. 

308) `Magnetic Fields and Multiple Protostar Formation' (contributed talk), 199th Meeting of the American Astronomical Society, Washington, D.C. 

309) `Finding and Forming Planetary Systems' (public lecture), Smithsonian Associates Lecture Program: The Life Story of the Universe, Smithsonian Institution, Washington, D.C. 

310) `Triggered Collapse, Magnetic Fields, and Very Low Mass Star Formation' (invited review), Workshop on Galactic Star Formation Across the Stellar Mass Spectrum, International Astronomical Observatories in Chile, La Serena, Chile. 

311) `Astrobiology and Planet Formation' (video interview), NASA Astrobiology Institute video Studio, NASA Ames Research Center, California. 

312) `Rapid Ice Giant Planet Formation and the Implications for Prebiotic Chemistry' (contributed talk), Astrobiology Science Conference 2002, NASA Ames Research Center, Moffett Field, California. 

313) `Building the Solar System' (invited talk), All-Carnegie Centennial Symposium, Carnegie Institution of Washington, Washington, D.C. 

314) `Brown Dwarfs and Gas Giant Planets -- Keys to Stellar and Planetary Origins' (sales pitch for Full-Sky Astrometric Mapping Explorer), Space Science and Engineering Group, Applied Physics Laboratory, Laurel, Maryland. 

315) `Brown Dwarf Terminology' (chair, panel discussion), International Astronomical Union Symposium 211 on Brown Dwarfs, Kohala, Hawaii. 

316) `Formation of Planetary-Mass Brown Dwarfs in Magnetic Molecular Clouds' (contributed talk), International Astronomical Union Symposium 211 on Brown Dwarfs, Kohala, Hawaii. 

317) `Implications of the Discovery of KH 15D' (press conference), Scientific Frontiers in Research on Extrasolar Planets, Washington, D.C. 

318) `Gas and Ice Giant Planet Formation' (invited review), Scientific Frontiers in Research on Extrasolar Planets, Washington, D.C. 

319) `The Star Named KH 15D' (live television/radio interview), Talk to America Show, Voice of America Network, Washington, D.C.

320) `Discovery of Extrasolar Planets' (invited lecture), Seventh Cycle of Special Courses, National Observatory, Rio de Janeiro, Brazil. 

321) `Formation of Sub-Brown Dwarf Stars' (invited lecture), Seventh Cycle of Special Courses, National Observatory, Rio de Janeiro, Brazil. 

322) `Triggering the Formation of the Solar System', (invited lecture), Seventh Cycle of Special Courses, National Observatory, Rio de Janeiro, Brazil. 

323) `Gas Giant Planet Formation' (invited lecture), Seventh Cycle of Special Courses, National Observatory, Rio de Janeiro, Brazil. 

324) `Terrestrial and Ice Giant Planet Formation' (invited lecture), Seventh Cycle of Special Courses, National Observatory, Rio de Janeiro, Brazil. 

325) `Preservation of Isotopic Heterogeneity in the Solar Nebula: Vertical Mixing and Turbulent Diffusion' (contributed talk), Meteoritical Society Meeting, University of California, Los Angeles. 

326) `Outlook: Testing Planet Formation Theories' (invited summary), Workshop on Planetary Systems and Planets in Systems, International Space Science Institute, Saas Fee, Switzerland. 

327) `Gas and Ice Giant Planet Formation' (invited colloquium), Department of Astronomy, University of Texas, Austin, Texas. 

328) `A New Scenario for the Origin of the Solar System' (invited overview), First Iberian Congress of Meteorites and Planetary Geology, Cuenca, Spain. 

329) `A Heretic's Approach to Solar System Formation' (public lecture), Benjamin Dean Lecture Series on ``Dissecting Solar Systems'', California Academy of Sciences, San Francisco, California. 

330) `Gas and Ice Giant Planet Formation' (invited colloquium), Astronomy and Astrophysics Department, University of California, Santa Cruz, California.

2003

331) `The Formation of Planetary Systems' (invited talk), Symposium on Astrobiology, Centro de Astrobiologia Inaugural Ceremony, Madrid, Spain. 

332) `Gas and Ice Giant Planet Formation' (invited colloquium), Carnegie Observatories, Carnegie Institution of Washington, Pasadena, California. 

333) `Astronomy Primer' (invited overview talk), Third NASA Astrobiology Institute General Meeting, Arizona State University, Tempe, Arizona. 

334) `Astrobiological Implications of Forming the Solar System in an Ultraviolet-rich Environment' (contributed talk), Third NASA Astrobiology Institute General Meeting, Arizona State University, Tempe, Arizona. 

335) `Forming Solar Systems in Regions of High Ultraviolet Flux' (invited presentation), National Research Council Committee on the Origins and Evolution of Life, Washington, DC. 

336) `Gas Giant Protoplanet Formation: Disk Instability Models with Detailed Thermodynamics and Varied Artificial Viscosity', (contributed talk), Lunar and Planetary Science Conference XXXIV, Houston, Texas. 

337) `Gas-Drag Induced Migration of Solids in the Vicinity of a Density Enhancement in a Non-Uniform Solar Nebula' (N. Haghighiour's poster), Lunar and Planetary Science Conference XXXIV, Houston, Texas. 

338) `A Heretic's Approach to Solar System Formation' (invited colloquium), Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California. 

339) `Formation of Gas and Ice Giant Planets' (contributed talk), Toward Other Earths: Darwin/TPF Workshop, Heidelberg, Germany. 

340) `Formation of Giant Planets' (invited talk), Astrobiology and JWST Workshop, Carnegie Institution of Washington, Washington, D.C. 

341) `Giant Planet Formation by Disk Instability: Observational Consequences' (invited talk), American Astronomical Society Meeting, Nashville, Tennessee. 

342) `Collapse and Fragmentation of Magnetized Infinite Sheets' (contributed poster), Center for Star Formation Studies Workshop, Lake Tahoe, California. 

343) `Rapid Formation of Giant Planets in Binary Star Systems' (contributed poster), Gordon Research Conference on the Origins of Solar Systems, Roger Williams College, Bristol, Rhode Island, 

344) `Rapid Formation of Giant Planets in Binary Star Systems' (informal talk), Astronomy Group Weekly Meeting, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

345) `The Oldest Planet' (televised press conference), Space Science Update Series, NASA Headquarters, Washington, DC. 

346) `The Oldest Planet' (live television interview), The News Hour with Jim Lehrer, Public Broadcast Network, Arlington, Virginia. 

347) `The Oldest Planet' (taped interview), National Public Radio, Arlington, Virginia. 

348) `Planet Formation in Binary Star Systems?' (press conference presentation), 35th Meeting of the Division for Planetary Sciences, Monterey, California. 

349) `Rapid Formation of Giant Planets in Binary Star Systems' (contributed talk), 35th Meeting of the Division for Planetary Sciences, Monterey, California. 

350) `Gas and Ice Giant Planet Formation' (invited colloquium), National Radio Astronomy Observatory, Charlottesville, Virginia. 

351) `Formation of Habitable Planetary Systems' (panel discussion), NSF Symposium: New Windows on the Universe, Ground-based Astronomy in the 21st Century, Washington, DC. 

352) `Planet Formation in Binary Star Systems?' (contributed poster), TPF Science, Technology, and Design Expo, Pasadena, California. 

353) `NASA Astrobiology Missions' (invited talk), NASA Astrobiology Institute Executive Council Strategic Retreat, Jackson Hole, Wyoming. 

354) `Formation of Gas and Ice Giant Planets' (seminar), University of Delaware. 

355) `Planet Formation' (featured speaker), Symposium on Life in a Planetary Context, American Society for Gravitational and Space Biology Annual Meeting, Huntsville, Alabama. 

356) `A Heretic's Approach to Solar System Formation' (invited seminar), Space Telescope Science Institute, Baltimore, Maryland.

2004

357) `Looking for Earths: The Race to Find New Solar Systems' (public lecture), McMaster University, Hamilton, Ontario, Canada. 

358) `The Formation of Giant Planets' (invited seminar), McMaster University, Hamilton, Ontario, Canada. 

359) `The Formation of Gas Giants' (invited keynote address), Planetary Timescales: Stardust to Continents Workshop, Australian National University and Australian Academy of Science, 

360) `Looking for Earths: The Kepler Mission' (television interview), Australian Broadcast Corporation (broadcast on February 17, 2004), Canberra, Australia. 

361) `Looking for Earths: The Race to Find New Solar Systems' (public lecture), Frontiers of Astronomy Series, Cleveland Astronomical Society/Cleveland Museum of Natural History, Cleveland, Ohio. 

362) `A Heretic's Approach to Solar System Formation' (invited seminar), Department of Astronomy, Case-Western Reserve University, Cleveland, Ohio. 

363) `Convective Cooling of Protoplanetary Disks and Rapid Giant Planet Formation' (contributed talk), Lunar and Planetary Science Conference XXXV, Houston, Texas. 

364) `Planet Formation in Binary Star Systems?' (contributed talk), Astrobiology Science Conference 2004, NASA Ames Research Center, Moffett Field, California. 

365) `Formation of Sub-Brown Dwarf Stars' (colloquium), Astronomy Department, University of Illinois, Champaign-Urbana, Illinois. 

366) `The Search for New Solar Systems' (public lecture), Carnegie Evening 2004, Carnegie Institution, Washington, D.C. 

367) `Youngest Planet and Ingredients for Life Found in Forming Solar Systems' (televised press conference), Space Science Update Series, NASA Headquarters, Washington, DC. 

368) `Planet Formation in Binary Star Systems?' (contributed poster), Bioastronomy 2004 -- Habitable Worlds, Reykjavik, Iceland. 

369) `Looking for Earths in Nearby Solar Systems' (public lecture), Bioastronomy 2004 -- Habitable Worlds, Reykjavik, Iceland. 

370) `Bioastronomy and the Search for Nearby Earths', (television interview), Icelandic State Television Evening News Program (7:00 pm, July 12), Reykjavik, Iceland. 

371) `Formation of Giant Planets' (invited talk/debate), Second TPF/Darwin International Conference, Mission Bay, San Diego, California. 

372) `New Class of Neptune-Sized, Extrasolar Planets Discovered' (televised press conference), Space Science Update Series, NASA Headquarters, Washington, DC. 

373) `New Class of Neptune-Sized, Extrasolar Planets Discovered' (live radio interview), Tom Hewell Show, KNX-CBS radio, Los Angeles, California. 

374) `New Class of Neptune-Sized, Extrasolar Planets Discovered' (taped radio interview), Science in Action, BBC World Service, Washington, DC. 

375) `New Class of Neptune-Sized, Extrasolar Planets Discovered' (television interview), Country Wide Show, Canadian Broadcast Corporation, Washington, DC. 

376) `Discovery of Neptune-Mass Planets and the Formation of Giant Planets' (invited talk), Solar System Exploration Subcommittee, NASA Headquarters, Washington, DC. 

377) `General Overview Session Introduction' (invited overview), Chondrites and the Protoplanetary Disk, Kauai, Hawaii. 

378) `Shock Heating: Origin of Shock Waves in the Protoplanetary Disk' (invited review), Chondrites and the Protoplanetary Disk, Kauai, Hawaii. 

379) `Giant Planet Formation and Implications for Astrobiology' (invited seminar), Goddard Center for Astrobiology, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

380) `Giant Planet Formation: Core Accretion vs. Disk Instability' (invited seminar), Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania. 

381) `Giant Planet Formation: Theories Meet Observations' (invited review), Ringberg Workshop on Planet Formation: Theory Meets Observation, Ringberg Castle, Bavaria, Germany.

2005

382) `Report on Ringberg Meeting: Planet Formation 2004' (informal talk), Astronomy Group Weekly Meeting, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

383) `Collapse and Fragmentation of Magnetically-Supported Infinite Sheets' (contributed talk), American Astronomical Society Meeting, San Diego, California. 

384) `Seeing Extra-Solar Planets' (radio interview), National Public Radio, Morning Edition Show, Washington, D.C. 

385) `Formation of Giant Planets' (invited colloquium), Institute for Astronomy, University of Hawaii, Manoa, Hawaii. 

386) `Formation of Sub-Brown Dwarf Stars' (invited seminar), Center for Star and Planet Formation, Institute for Astronomy, University of Hawaii, Manoa, Hawaii. 

387) `Mixing and Transport in Protoplanetary Disks: Chondrites and Crystalline Silicates' (poster presentation), From Disks to Planets: New Observations, Models, and Theories, Pasadena, California. 

388) `Mixing and Transport of Chondrules and CAIs in the Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XXXVI, Houston, Texas. 

389) `Distant Planets: The Language of Light' (televised press conference), Space Science Update Series, NASA Headquarters, Washington, DC. 

390) `Distant Planets: The Language of Light' (radio interview), Premier Radio Network, Albuquerque, New Mexico. 

391) `Looking at Planets Beyond the Solar System' (radio show), Morning Edition, National Public Radio, Washington, D.C. 

392) `Looking for Earths: The Race to Find New Solar Systems' (public lecture), Huntington Library Public Lecture Series, Observatories of the Carnegie Institution of Washington, Pasadena, California. 

393) `Looking for Earths: The Race to Find New Solar Systems' (brown bag lunch lecture series), Space Interferometry Mission team, Jet Propulsion Laboratory, Pasadena, California. 

394) `A Heretic's Approach to Solar System Formation' (colloquium), Department of Physics and Astronomy, Arizona State University, Tempe, Arizona. 

395) `The Carnegie Astrometric Planet Search Program' (poster), NASA Astrobiology Institute 2005 Biennial Meeting, University of Colorado, Boulder, Colorado. 

396) `Extrasolar Planets: Past, Present, and Future' (opening talk), ``A Decade of Extrasolar Planets Around Normal Stars'', Space Telescope Science Institute, Baltimore, Maryland. 

397) `John Wood and the Shocking Truth about Chondrules' (invited speaker), Retirement Symposium for Dr. John Wood, Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts. 

398) `Looking for Earths: The Race to Find New Solar Systems' (invited colloquium), Director's Colloquium Series, Los Alamos National Laboratory, Los Alamos, New Mexico. 

399) `Interpretation of the Observations of Extrasolar Planetary Systems' (invited talk), Gordon Research Conference on Origins of Solar Systems, Connecticut College, New London, Connecticut. 

400) `Formation of Planetary Systems. I. Theory vs. Theory' (invited lecture), Kobe International Summer School of Planetary Science, ``Origin Planetary Systems'', Awaji Island, Japan. 

401) `Formation of Planetary Systems. II. Theory vs. Observations' (invited lecture), Kobe International Summer School of Planetary Science, ``Origin of Planetary Systems'', Awaji Island, Japan. 

402) `Discovery of the Tenth Planet' (taped television interview), NBC Nightly News, Washington, D.C. 

403) `NASA's Kepler Mission and the Search for Habitable Planets' (invited seminar), Space Science Series, George Mason University, Fairfax, Virginia. 

404) `Giant Planet Formation: Theory vs. Observations' (colloquium), Department of Astronomy, University of Texas, Austin, Texas. 

405) `The Carnegie Astrometric Planet Search' (talk), Carnegie NASA Astrobiology Institute Team Meeting, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

406) `Implications of Giant Planet Formation for Disk Chemistry' (invited talk), NASA Astrobiology Institute Workshop on Disk Chemistry, Waikoloa, Hawaii. 

407) `Gravitational Instabilities in Gaseous Protoplanetary Disks and Implications for Giant Planet Formation' (invited review), Protostars and Planets V Conference, Waikoloa, Hawaii. 

408) `Other Worlds' (public lecture), Protostars and Planets V Conference, Waikoloa, Hawaii. 

409) `Giant Planet Formation: Theory Meets Observations' (seminar), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C.

2006

410) `Gas Giant Protoplanets Formed by Disk Instability in Binary Star Systems' (invited talk), American Astronomical Society Meeting, Washington, D.C. 

411) `Has an Extrasolar Earth Been Found?' (invited talk), Geological Society of Washington meeting, Cosmos Club, Washington, D.C. 

412) `NASA's Science Budget Crisis' (taped interview), French Language Radio Program, Canadian Broadcast Corporation, Montreal, Canada. 

413) `Giant Planet Formation: Theory Meets Observations' (colloquium), United States Naval Observatory, Washington, D.C. 

414) `Isotopic Heterogeneity Associated with Mixing and Transport in the Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XXXVII, Houston, Texas, 

415) `Giant Planet Formation: Theory vs. Observations' (invited colloquium), Earth and Space Sciences Colloquium, Jet Propulsion Laboratory, Pasadena, California. 

416) `Planetary System Formation Around M Dwarf Stars' (contributed talk), Fourth Annual Astrobiology Science Conference, Washington, DC. 

417) `Discovering Habitable Worlds Elsewhere' (invited talk), Astrobiology: Vision for Exploration Symposium, Fourth Annual Astrobiology Science Conference, Washington, DC. 

418) `Giant Planet Formation: Theory Meets Observations' (colloquium), Astronomy Department, Pennsylvania State University, University Park, Pennsylvania. 

419) `New Developments in Extrasolar Planetary Science' (talk), Kepler Mission Science Team Meeting, NASA Ames Research Center, Moffett Field, California. 

420) `Disk Instability Models: What Works and What Does Not Work' (invited talk), From Protostellar Disks to Planetary Systems Workshop, University of Western Ontario, London, Ontario, Canada. 

421) `Looking for Earths: The Race to Find New Solar Systems' (invited public lecture), Royal Astronomical Society, University of Western Ontario, London, Ontario, Canada. 

422) `Origins of Planetary Systems' (invited lecture), International Summer School of Astrobiology ``Josep Comas i Sola'', Santander, Spain. 

423) `Protoplanetary Disks and the Early Solar System' (invited lecture), International Summer School of Astrobiology ``Josep Comas i Sola'', Santander, Spain. 

424) `Spatial Heterogeneity of Short-Lived and Stable Isotopes in the Solar Nebula' (contributed talk), Meteoritical Society Meeting, Zurich, Switzerland. 

425) `Extrasolar Planets' (taped radio interview), Cosmos Series, BBC Science Radio, Washington, DC. 

426) `Planets Around M Dwarfs' (plenary talk), Hot Topics Session, IAU XXVI General Assembly, Prague, Czech Republic. 

427) `Is Pluto a Planet?' (taped television interview), Hearst Television Network (WBAL, Baltimore), Washington, DC. 

428) `Is Pluto a Planet?' (live television interview), Your World Today Show (CNN National and International), Washington, DC. 

429) `Is Pluto a Planet?' (live television interview), Canadian News Network (CTV), Washington, DC. 

430) `Is Pluto a Planet?' (taped television interview), The News Hour with Jim Lehrer (PBS), Shirlington, Virginia. 

431) `What's a Planet?' (live radio interview), Talk to America Show, Voice of America Network, Washington, DC. 

432) `Gas Giant Planet Formation: Theory vs. Observations' (noon seminar), Extrasolar Planets Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

433) `The Characteristics of Known Exoplanets and their Relevance to Habitable Environments' (invited talk), Pale Blue Dot III: Searching for Life on Distant Worlds, Adler Planetarium & Astronomy Museum, Chicago, Illinois. 

434) `SWEEPS: Hubble Detects 16 Planetary Candidates' (televised press conference), NASA Science Update Series, NASA Headquarters, Washington, DC. 

435) `Rapid Formation of Gas Giant Planets and Super-Earths Around M Dwarfs' (contributed talk), Division of Planetary Sciences Meeting, Pasadena, California. 

436) `Are There Planets Like Earth Around Other Stars?' (public lecture), Broad Branch Road Lecture Hall, Carnegie Institution, Washington, D.C. 

437) `Theory View on Planet Formation' (invited talk), Splinter Session on Disks Around Brown Dwarf Stars, 14th. Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Pasadena, California.

2007

438) `Gas Giant Planet Formation: Theory vs. Observations' (colloquium), University of Virginia/National Radio Astronomy Observatory, Charlottesville, Virginia. 

439) `Early Discoveries of Extrasolar Planets' (invited talk), Extrasolar Planets Media Workshop, University of Colorado, Boulder, 

440) `Spatial Heterogeneity of Short-Lived Radioisotopes and of Stable Oxygen Isotopes in the Solar Nebula' (contributed talk), Lunar and Planetary Science Conference XXXVIII, Houston, Texas. 

441) `Update on Extrasolar Planet Discoveries and Theoretical Work' (talk), Kepler Mission Science Team Meeting, NASA Ames Research Center, Moffett Field, California. 

442) `Formation of Planetary Systems' (invited lecture), Symposium on Structure Formation in Astrophysics, Crafoord Jubilee, University of Lund, Sweden. 

443) `Habitable Worlds' (radio interview), Morning Edition, National Public Radio, from Lund, Sweden. 

444) `Testing Disk Instability Models for Giant Planet Formation' (contributed talk), American Astronomical Society Meeting, Honolulu, Hawaii. 

445) `New Extrasolar Planets' (press conference), American Astronomical Society Meeting, Honolulu, Hawaii. 

446) `A Heretic's Approach to Solar System Formation' (invited colloquium), Stockholm Observatory, Stockholm, Sweden. 

447) `Rapid Formation of Gas Giants, Ice Giants, and Super-Earths' (invited review), Nobel Symposium No. 135 on ``Physics of Planetary Systems'', Uppsala, Sweden. 

448) `Extrasolar Planetary Systems' (television interview), Swedish National Television Network, Stockholm, Sweden. 

449) `Exoplanets' (session introduction), Gordon Research Conference on Origins of Solar Systems, Mount Holyoke College, South Hadley, Masschusetts. 

450) `Orbital Migration of Earth-Mass Planets in a Marginally Gravitationally Unstable Disk' (contributed talk), Bioastronomy 2007 Meeting, San Juan, Puerto Rico. 

451) `Extrasolar Planets' (videotaped interview), "The Universe", The History Channel (television), Tucson, Arizona. 

452) `A Heretic's Approach to Solar System Formation' (invited seminar), LAPLACE Astrobiology Lunch Series, University of Arizona, Tucson, Arizona. 

453) `Triggering Presolar Cloud Collapse and Injection of Short-Lived Radioisotopes by a Supernova Shock Wave' (contributed talk), Meteoritical Society Meeting, Tucson, Arizona. 

454) `New Planets' (invited lecture), Bicentennial Conference of the Geological Society of London, London, England. 

455) `A Heretic's Approach to Solar System Formation' (seminar), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

456) `A Heretic's Approach to Solar System Formation' (invited talk), NASA Goddard Space Flight Center, Greenbelt, Maryland. 

457) `Orbital Migration of Earth-Mass Planets in a Marginally Gravitationally Unstable Disk' (contributed talk), 39th Meeting of the Division for Planetary Sciences, Orlando, Florida. 

458) `Giant Planet Formation: Theory vs. Observations' (invited lecture), Dr. Wes Huntress Symposium, Geophysical Laboratory, Washington, D.C. 

459) `Giant Planet Formation' (invited briefing), Science Mission Directorate, NASA Headquarters, Washington, D.C.

2008

460) `Formation of Planetary Systems. I. Theory vs. Theory' (invited lecture), Winter School on Exoplanets, TIARA, National Tsing Hua University, Taipei, Taiwan. 

461) `Formation of Planetary Systems. II. Theory vs. Observations' (invited lecture), Winter School on Exoplanets, TIARA, National Tsing Hua University, Taipei, Taiwan. 

462) `Exoplanets' (documentary interview), `Infinite Worlds', National Geographic Television, Washington, D.C. 

463) `Star and Planet Formation Theory/Astrometric Planet Detection' (mini-talk), DTM Staff Extravaganza, DTM Seminar Series, Washington, D.C. 

464) `Cometary Refractories, Crystalline Silicates, Short-Lived Radioisotopes, Stable Oxygen Isotopes, and the Solar Nebula' (contributed talk), Lunar and Planetary Science Conference, Houston Texas. 

465) `Cosmochemical Constraints on Planet Formation Mechanisms' (contributed talk), Astrobiology Science Conference 2008, Santa Clara, California. 

466) `Recent Advances in Exoplanet Research' (talk), Kepler Mission Science Team Meeting, Center for Astrophysics, Cambridge, Massachusetts. 

467) `Astrometry and Planetary Systems Theory' (plenary talk), Exoplanet Forum 2008, Pasadena, California. 

468) `Star and Planet Formation Theory/Astrometric Planet Detection' (talk), Presentations by the DTM Astronomy Group to NSF REU Students, Washington, D.C. 

469) `EIRB Assessment of SIM Simulation' (presentation to Dr.~Jon Morse), Astrophysics Division, Science Mission Directorate, NASA HQ, Washington, D.C. 

470) `The Formation of Planetary Systems' (invited lecture), ISSOL 2008, International Society for the Study of the Origin of Life, Florence, Italy. International Society for the Study of the Origin of Life, Florence, Italy. 

471) `Looking for Earths' (invited talk), Las Campanas Observatory, Manqui, Atacama Desert, Chile. 

472) `Formation of Giant Planets, Super-Earths, and Habitable Planets' (keynote lecture), First International Academy of Astronautics Symposium on Searching for Life Signatures, UNESCO, Paris, France. 

473) `A Heretic's Approach to the Origin of the Solar System' (invited seminar), Museum National d'Histoire Naturelle, Paris, France. 

474) `Summary of the Workshop' (invited summary), Galactic Habitability Workshop, Royal Observatory Edinburgh, Edinburgh, Scotland. 

475) `Giant Planet Formation: Theory vs. Observation' (invited seminar), School of Physics and Astronomy, St Andrews University, St Andrews, Scotland. 

476) `Giant Planet Formation: Theory vs. Observation' (invited seminar), Royal Observatory Edinburgh, Edinburgh, Scotland. 

477) `Giant Planet Formation: Theory vs. Observation' (invited seminar), Physics Department, University of Central Florida, Orlando, Florida. 

478) `Disk Instability: Theory vs. Theory' (invited talk), Star Formation Workshop, Embry-Riddle Aeronautical University, Daytona Beach, Florida. 

479) `The Crowded Universe: The Search for Living Planets' (invited public lecture), Embry-Riddle Aeronautical University, Daytona Beach, Florida. 

480) `Supernovae, Short-lived and Stable Isotopes, and the Solar Nebula' (invited seminar) Astronomy Seminar Series, State University of New York, Stony Brook, New York. 

481) `Recent Advances in Exoplanet Research - Part Deux' (invited talk), Kepler Mission Science Team Meeting, NASA Ames Research Center, Moffett Field, California. 

482) `Hot Pix of Cold Exoplanets' (invited talk), Astronomy Journal Club, DTM, Carnegie Institution, Washington, D.C.

2009

483) `The Crowded Universe' (taped radio interview), Bob Edwards Show, XM Satellite Radio, Washington, D.C. 

484) `The Crowded Universe' (taped radio interview), WGVU Morning Show, Grand Rapids, Michigan, taped in Washington, D.C. 

485) `The Crowded Universe' (live radio interview), Jim Bohannon Show (Westwood One Radio Network), CBS Radio, Washington, D.C. 

486) `The Crowded Universe' (live radio interview), Coast to Coast AM, Premier Radio Network, Silver Spring, Maryland. 

487) `The Crowded Universe' (taped radio interview), Extension 720, WGN-AM, Chicago, Illinois. 

488) `The Crowded Universe' (taped radio interview), BBC News, Science and Environment, Chicago, Illinois. 

489) `The Search for Living Planets' (overview talk), Origin and Evolution of Planets Symposium, American Association for the Advancement of Science Annual Meeting, Chicago, Illinois. 

490) `The Search for Living Planets' (taped radio interview), Earth & Sky Radio Series, AAAS meeting, Chicago, Illinois. 

491) `Habitable Worlds' (live radio interview), Columbia National Radio, Bogota, Columbia. 

492) `Habitable Worlds' (live radio interview), ABC Radio Network, Canberra, Australia. 

493) `Disk Instability: Theory vs. Theory'' (group talk), Astronomy Journal Club, DTM, Washington, D.C. 

494) `The Search for Living Planets' (taped radio interview), Something You Should Know (nationally syndicated show), Washington, D.C. 

495) `The Crowded Universe' (book event), Reiter's Scientific Books, Washington, D.C. 

496) `The Search for Living Planets' (taped radio interview), Overnight America Show, CBS Radio, St. Louis, Missouri. 

497) `The Crowded Universe' (taped radio interview), Faith Middleton Show, Connecticut Public Radio, New Haven, Connecticut. 

498) `The Crowded Universe' (taped radio interview), Late Mornings with Jeff Schechtman, KVON, Napa, California. 

499) `The Search for Living Planets' (live radio interview), The Night Before Show, Kerrang Radio, Birmingham, United Kingdom. 

500) `Kepler Science Council's Publication Plans' (invited talk), NASA Kepler Mission Science Team Meeting, Cocoa Beach, Florida. 

501) `The Crowded Universe' (taped radio interview), The Point Show, Canadian Broadcasting Corporation, Vancouver, British Columbia. 

502) `The Crowded Universe' (taped podcast interview), Basic Books Division of Perseus Books, New York, New York. 

503) `The Crowded Universe' (live radio interview), Baxter in the Morning Show, KCAA-AM, San Bernardino, California. 

504) `The Crowded Universe' (taped radio interview), Morning Edition Show, National Public Radio, Washington, DC. 

505) `The Crowded Universe' (taped radio interview), All Things Considered Show, National Public Radio, Washington, DC. 

506) `The Crowded Universe' (live radio interview), On Point with Tom Ashbrook, National Public Radio, Orlando, Florida. 

507) `The Crowded Universe' (live radio interview), The Greg and Dan Show, WMBD-AM, Peoria, Illinois. 

508) `The Crowded Universe' (live radio interview), Lanigan and Malone Morning Show, WMJI-FM, Cleveland, Ohio. 

509) `The Crowded Universe' (taped radio interview), The Universe in Mind, University of Toronto, Toronto, Canada. 

510) `The Crowded Universe' (taped radio interview), Tech Nation Show, KQED-FM, San Francisco, California. 

511) `The Crowded Universe' (live radio interview), The Morning Show, KPFA, Berkeley, Francisco, California. 

512) `The Crowded Universe' (videotaped, public lecture), Commonwealth Club, San Francisco, California. 

513) `The Crowded Universe' (public lecture), Berkeley Arts and Letters, Berkeley City Club, California. 

514) `The Crowded Universe' (taped radio interview), John Batchelor Show, Seattle, Washington. 

515) `The Crowded Universe' (live radio interview), Dave Ross Show, Seattle, Washington. 

516) `The Crowded Universe' (public lecture), Town Hall Seattle, Seattle, Washington. 

517) `The Crowded Universe' (public lecture), Microsoft Headquarters, Redmond, Washington. 

518) `Simultaneous Triggered Presolar Cloud Collapse and Injection of Short-Lived Radioisotopes by a Supernova Shock Wave' (contributed talk), Lunar and Planetary Science Conference, Houston, Texas. 

519) `The Crowded Universe' (live radio interview), The Think Show, KERA-FM, Dallas, Texas. 

520) `The Crowded Universe: The Search for Living Planets' (public lecture), Smithsonian Resident Associates Lecture, Washington, D.C. 

521) `The Crowded Universe: The Search for Living Planets' (live radio interview), These Days Show, KPBS-FM, San Diego, California. 

522) `The Crowded Universe: The Search for Living Planets' (public lecture), San Diego Science Festival, San Diego, California. 

523) `The Crowded Universe: The Search for Living Planets' (public lecture), California Insitute of Technology, Pasadena, California. 

524) `The Crowded Universe: The Search for Living Planets' (live radio interview), Focus 580 Show, WILL-AM, Urbana, Illinois. 

525) `The Crowded Universe: The Search for Living Planets' (live radio interview), Airtalk with Larry Mantle Show, KPCC-FM, Pasadena, California. 

526) `The Crowded Universe: The Search for Living Planets' (live radio interview), Kojo Nnamdi Show, WAMU-FM, Washington, D.C. 

527) `The Crowded Universe: The Search for Living Planets' (live radio interview), Univeral Learning Series, BlogTalk Radio, Washington, D.C. 

528) `The Crowded Universe: The Search for Living Planets' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

529) `Gradients in the Spatial Heterogeneity of the Short-Lived Radioisotopes 60Fe and 26Al and Stable Oxygen Isotopes in the Solar Nebula' (contributed talk), Meteoritical Society Meeting, Nancy, France. 

530) `NASA's Kepler Mission Spies Changing Phases in a Distant World' (televised press conference), NASA Science Update Series, NASA Headquarters, Washington, DC. 

531) `Opening Remarks' (invited talk), IAU Special Session #6 on ``Planetary Systems as Potential Sites for Life'', IAU General Assembly, Rio de Janeiro, Brazil. 

532) `George Wetherill: Geochemist, Planetary Scientist, and Astrobiologist' (invited talk), IAU Special Session #6 on ``Planetary System as Potential Sites for Life'', IAU General Assembly, Rio de Janeiro, Brazil. 

533) `Metallicity and Planet Formation: Models' (invited review), IAU Symposium 265 ``Chemical Abundances in the Universe: Connecting First Stars to Planets'', IAU General Assembly, Rio de Janeiro, Brazil. 

534) `Active SETI' (television interview), The Brink Show, Discovery Science Channel, Washington, D.C. 

535) `The Search for Living Planets' (live radio interview), The Diane Rehm Show (NPR), WAMU-FM, Washington, D.C. 

536) `Glycine in Comet Wild 2' (live radio interview), The Morning Show, KPFA, Berkeley, Francisco, California. 

537) `Giant Planet Formation by Disk Instability' (contributed poster), ``Pathways Toward Habitable Planets'' Conference, Barcelona, Spain. 

538) `Astro 2010 Decadal Survey' (contributed talk), ``Pathways Toward Habitable Planets'' Conference, Barcelona, Spain. 

539) `First Rocky Planet - CoRoT-7b' (live radio interview), CNN/KSRO Newstalk Radio, Sonoma County, California (from Barcelona, Spain). 

540) `Europeans Announce 32 New Exoplanets' (hour-long live online Q&A), USA Today web site, Washington, DC. 

541) `Europeans Announce 32 New Exoplanets' (live radio interview), Midmorning Show, Minnesota Public Radio.

2010

542) `Habitable Worlds Around M Dwarf Stars' (invited talk), AstroBio2010 Workshop, Santiago, Chile. 

543) `The Crowded Universe: The Search for Living Planets' (invited talk), American Physical Society/American Association of Physics Teachers Joint Meeting, Washington, D.C. 

544) `Increased Short-Lived Radioisotope Injection Efficiencies for Presolar Cloud Collapse Triggered by a Supernova or AGB Star Shock Wave,' (contributed talk), Lunar and Planetary Science Conference, Houston, Texas. 

545) `The Crowded Universe: The Search for Living Planets' (public lecture), Annual Teachers Conference at the Exoplanets Rising Conference, Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California. 

546) `Report on the KITP Exoplanets Rising Conference' (with John Chambers), Astronomy Group Seminar, DTM, Carnegie Institution, Washington, D.C. 

547) `Astrophysics Division Science Highlights' (presentation), NASA Advisory Council Science Committee, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

548) `NASA Astrobiology Institute Planetary System Formation Focus Group' (focus group talk), Astrobiology Science Conference 2010, Houston, Texas. 

549) `Astrometric Constraints on Habitable Planets Around M Dwarfs' (contributed talk), Astrobiology Science Conference 2010, Houston, Texas. 

550) `The Crowded Universe: The Search for Living Planets' (Yuval Ne'eman Lecturer), Tel Aviv University, Tel Aviv, Israel. 

551) `Giant Planet Formation: Theory vs. Observation' (Yuval Ne'eman Lecturer), Tel Aviv University, Tel Aviv, Israel. 

552) `Supernovae, Short-Lived and Stable Isotopes, and the Solar Nebula' (Yuval Ne'eman Lecturer), Tel Aviv University, Tel Aviv, Israel. 

553) `Supernovae, Short-Lived and Stable Isotopes, and the Solar Nebula' (seminar), DTM, Carnegie Institution of Washington, Washington, D.C. 

554) `Astrophysics Division Science Highlights and Astrophysics Subcommittee Meeting Report' (presentation), NASA Advisory Council Science Committee, NASA Headquarters, Washington, D.C. 

555) `7 New Planets Orbiting a Sun-Like Star' (radio interview), CBS Radio News, New York, New York. 

556) `Astronomers Discover Two New Solar Systems' (radio interview), Morning Edition, National Public Radio, Washington, D.C. 

557) `Life in the Milky Way' (panel discussion/moderator), From Project Ozma to the Starship Enterprise: Ozma at 50 Workshop, Green Bank, West Virginia. 

558) `Astrophysics Subcommittee Meeting Report' (presentation), NASA Advisory Council Science Committee, NASA Headquarters, Washington, D.C. 

559) `First Habitable World?' (live television interview), Sheppard Smith Studio B Show, Fox News Channel, Washington, D.C. 

560) `First Habitable World?' (live television interview), America's News HQ Show, Fox News Channel, Washington, D.C. 

561) `Who Pulled the Trigger: A Supernova or an AGB Star?' (invited colloquium), Astrophysics Science Division Colloquium Series, NASA Goddard Space Flight Center, Greenbelt, Maryland. 

562) `Formation of Giant Planets by Disk Instability on Wide Orbits Around Protostars with Varied Masses' (contributed talk), Division on Planetary Sciences Meeting, Pasadena, California. 

563) `Exoplanets: Astro2010 Survey Results' (invited talk), IAU Symposium #276: "The Astrophysics of Planetary Systems", Turin, Italy. 

564) `Formation of Giant Planets by Disk Instability on Wide Orbits Around Protostars with Varied Masses' (poster), IAU Symposium #276: "The Astrophysics of Planetary Systems", Turin, Italy. 

565) `Environmental Outlook: Exoplanets and Dark Matter' (live radio interview), The Diane Rehm Show (NPR), WAMU-FM, Washington, D.C.

2011

566) `Origin and Evolution of the Solar System: A DTM Perspective' (invited seminar), DTM, Carnegie Institution for Science, Washington, D.C. 

567) `Astrophysics Division Science Highlights' (presentation), NASA Advisory Council Science Committee, NASA Headquarters, Washington, D.C. 

568) `Planet Formation Processes in a Marginally Gravitationally Unstable Disk Around a Solar-Mass Protostar (contributed talk), Lunar and Planetary Science Conference XXXXII, Houston, Texas. 

569) `The Crowded Universe: The Search for Living Planets' (invited talk), Mid-Atlantic Senior Physicists Group seminar series, College Park, Maryland. 

570) `The Crowded Universe: The Search for Living Planets' (invited talk), Southern Star Astronomy Convention, Little Switzerland, North Carolina. 

571) `Observing at Las Campanas, Chile: Searching M Dwarf Stars for Planets' (invited talk), Southern Star Astronomy Convention, Little Switzerland, North Carolina. 

572) `Overview of Kepler Results: Borucki et al. (2011)' (invited talk), Exploring Strange New Worlds: From Giant Planets to Super Earths, Flagstaff, Arizona. 

573) `The Cutting Edge in Astrophysics: Searching for Habitable Worlds' (invited lecture), The Inaugural Cutting Edge Lecture Series, American Association for the Advancement of Science, Washington, D.C. 

574) `Habitable Worlds Around M Dwarf Stars: The Carnegie Astrometric Planet Search Program' (contributed talk), Origins 2011 International Conference, Montpellier, France. 

575) `Planet Formation Theories and the Relevance of Microlensing Planets' (invited lecture), Sagan Summer Workshop, Caltech, Pasadena, California. 

576) `Astrophysics Subcommittee Letter Report' (presentation), NASA Advisory Council Science Committee, NASA Ames Research Center, Moffett Field, California. 

577) `Long Strange Trips: Particle Trajectories in a Marginally Gravitationally Unstable Solar Nebula' (contributed talk), Meteoritical Society Meeting, London, United Kingdom. 

578) `Challenges for Planet Formation Theories from Kepler and Microlensing' (seminar), Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D.C. 

579) `Detecting Super-Earths with GMT' (telephone talk), Giant Magellan Telescope TIGER Instrument Conceptual Design Review, Pasadena, California. 

580) `Collapse and Fragmentation of Magnetic Molecular Cloud Cores with an AMR Code' (contributed talk), Workshop on the Formation and Early Evolution of Very Low Mass Stars and Brown Dwarfs, Garching, Germany. 

581) `Astrophysics Subcommittee Letter Report' (presentation), NASA Advisory Council Science Committee, NASA Headquarters, Washington, D.C. 

582) `Injection and Homogenization of Short-Lived Radionuclides in the Solar System' (invited talk), Workshop on the Formation of the First Solids in the Solar System, Kauai, Hawaii. 

583) `Formation of Gas Giant Planets: Core Accretion and Disk Instability' (invited talk), Workshop on Exploring Giant Planets on NIF: A New Generation of Condensed Matter, Lawrence Livermore National Laboratory, Livermore, California. 

584) `NASA Telescope Spots Earth-Like Planet' (radio interview), Science World Program, Voice of America, Washington, D.C. 

585) `Kepler's First Habitable Zone Super-Earth Around a Sun-like Star' (radio interview), EarthSky Program, Voice of America, Wasington, D.c.

2012

586) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Astrophysics Science Division Colloquium Series, NASA Goddard Space Flight Center, Greenbelt, Maryland.

587) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Astrophysics Colloquium Series, Jet Propulsion Laboratory, Pasadena, California. 

588) `Astrophysics Subcommittee Letter Report' (presentation), NASA Advisory Council Science Committee, NASA Headquarters, Washington, D.C.

589) `NASA's Science Programs' (presentation), NASA Advisory Council, NASA Headquarters, Washington, D.C. 

590) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee. 

591) `The Crowded Universe: The Search for Living Planets' (invited public lecture), Dyer Observatory, Vanderbilt University, Nashville, Tennessee. 

592) `Particle Trajectories During FU Orionis Outbursts by the Protosun' (contributed talk), Lunar and Planetary Science Conference XLIII, Houston, Texas. 

593) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Department of Astronomy and Astrophysics, Pontifical University Catholic of Chile, Santiago, Chile. 

594) `Supernovae, Short-Lived and Stable Isotopes, and the Solar Nebula' (invited talk), Cosmochemistry Workshop, Tokyo, Japan. 

595) `Particle Transport and Thermal Processing During FU Orionis Events in the Solar Nebula' (invited talk), Japanese Geophysical Union Meeting 2012, Tokyo, Japan. 

596) `Talking with the Press' (presentation), Postdoctoral Development Program, Department of Terrestrial Magnetism, Carnegie Instituion for Science, Washington, D.C. 

597) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Geneva Observatory, University of Geneva, Switzerland. 

598) `Habitable Worlds Around M Dwarf Stars' (contributed talk), IAU Symposium #293 on Formation, Detection, and Characterization of Extrasolar Habitable Planets, IAU 28th General Assembly, Beijing, China. 

599) `Carnegie Astrometric Planet Search: Habitable Worlds Around M Dwarf Stars' (invited talk), Carnegie Observatories - DTM - GL Workshop, Washington, D.C. 

600) `Orbital Migration of Giant Protoplanets in a Marginally Gravitationally Unstable Disk' (contributed poster), Annual DPS Meeting, Reno, Nevada. 

601) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited seminar), Observatories of the Carnegie Institution of Washington, Pasadena, California.

2013

602) `Kepler, Microlensing, and Direct Imaging: New Constraints on Exoplanet Formation Theories' (invited colloquium), Florida Institute of Technology, Melbourne, Florida.

603) `The Crowded Universe: The Search for Living Planets' (invited public lecture), Florida Institute of Technology, Melbourne, Florida.

604) `Short-Lived Radioisotope Homogeneity and Stable Oxygen Isotope Heterogeneity: Single Shot Versus Continuous Injection at the Surface of the Outer Solar Nebula' (contributed talk), Lunar and Planetary Science Conference, Houston, Texas.

605) `Orbital Evolution of Dust Grains and Rocks During FU Orionis Outbursts (contributed talk), Transformational Science with ALMA: From Dust to Rocks to Planets, Formation and Evolution of Planetary Systems, Waikoloa, Hawaii.

606) `Orbital Migration of Protoplanets in a Marginally Gravitationally Unstable Disk' (contributed talk), European Planetary Science Congress 2013, London, United Kingdom.

607) `The Crowded Universe: The Search for Living Planets' (salon lecture), River Bend Golf & Country Club, Great Falls, Virginia.

608) 'Science Questions: Past, Present, and Future' (short talk), DTM Staff Retreat, Kent Manor Inn, Kent Island, Maryland.

609) `Orbital Migration of Giant Protoplanets in a Marginally Gravitationally Unstable Disk' (contributed poster), Second Kepler Science Conference, NASA Ames Research Center, Moffett Field, California.

610) `Exoplanets 2013: The Year in Review' (taped radio interview), National Public Radio, Nell Greenfield-Boyce, Washington, D.C.

611) `AFTA TAC Report' (telecon presentation), NASA Astrophysics-Focused Telescopes Technical Assessment Committee Report, Washington, D. C.

2014

612) `Do Binary Stars Primarily Originate in Multiple Protostar Systems?' (contributed talk), 223th. American Astronomical Society Meeting, National Harbor, Washington, D.C.

613) `The Crowded Universe' (invited talk), National Council of Space Grant Directors' Spring Meeting, Arlington, Virginia.

614) `Short-Lived Radioisotope Injection into the Solar Nebula: First 3D Calculations of Shock Interactions with Rotating Presolar Cloud Models' (contributed talk), Lunar and Planetary Science Conference, Houston, Texas.

615) `Collapse and Fragmentation of Magnetic Molecular Cloud Cores with the Enzo AMR MHD Code. II. Prolate and Oblate Cores' (contributed poster), AAS Topical Conference Series: Workshop on Dense Cores, Monterey, California.

616) `The Crowded Universe: The Search for Living Planets' (invited talk), Lunchtime Talks Series, Carnegie Institution for Science, P Street, Washington, D.C.

617) `Current Research and Activities' (informal talk), Astronomy Group Seminar Series, DTM, Carnegie Institution for Science, Washington, D.C.

618) `Exoplanet Science with WFIRST/AFTA' (invited overview talk), Wide Field Infrared Surveys Conference, Pasadena, California.

2015

619) `Supernova Shock Triggering and Radioisotope Injection into the Presolar Cloud: Effects of Rotational Axis Orientation' (contributed poster), Lunar and Planetary Science Conference, Houston, Texas.

620) `Twenty Years of Exoplanets' (video interview), NASA Exoplanet Exploration Program, Washington, D.C.

621) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Subcommittee Meeting, Washington, D.C.

622) `Supernova Shock Triggering and Radioisotope Injection into the Presolar Cloud: Effects of Rotational Axis Orientation' (contributed talk), Meteoritical Society Meeting, University of California, Berkeley.

623) `Future Exploration: Our Solar System's Origins, Water, and Life Session' (invited talk), American Institute of Aeronautics and Astronautics Space 2015 meeting, Pasadena, California.

624) `Flagship Astronomy Missions Beyond WFIRST Session: The ExoPAG Perspective' (invited talk), American Institute of Aeronautics and Astronautics Space 2015 meeting, Pasadena, California.

625) `Talking with the Press' (presentation), Postdoctoral Development Program, Department of Terrestrial Magnetism, Carnegie Instituion for Science, Washington, D.C.

626) `How to Get From a Supernova to a Refractory Inclusion' (contributed talk), Carnegie Origins 2015 Meeting, Carnegie Institution for Science, Washington, D.C.

627) `Hunting Planets: Celebrating 20 Years of Exoplanets' (public lecture), Carnegie Origins 2015 Meeting, Carnegie Institution for Science, Washington, D.C.

628) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Subcommittee Meeting, Greenbelt, Maryland.

2016

629) `Exoplanets and the Search for Life' (public lecture), Hot Topics in Astronomy, Washington Academy of Sciences, Washington, D.C.

630) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Subcommittee Meeting, NASA HQ, Washington, D.C.

631) `Beta Testing of Beta Cooling: Gaseous Protoplanets from Disk Instabilities' (poster), BBR Poster Session, Washington, D.C.

632) `NASA Exoplanet Program Analysis Group Activities' (invited talk), NASA Nexus for Exoplanet System Science Meeting, Washington, D.C.

633) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Subcommittee Meeting, NASA HQ, Washington, D.C.

634) `Beta Testing of Beta Cooling for Gas Giant Protoplanets by Disk Instability' (poster), National Capital Area Disks Meeting #6, Washington, D.C.

635) `Conference Summary: Ground vs. Space' (invited review talk), Exoplanets in the Era of Extremely Large Telescopes, Asilomar, Pacific Grove, California.

636) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Subcommittee Meeting, Webex conference, Washington, D.C.

637) `Current Research and Activities' (talk), Third Tuesdays Series, DTM, Washington, D.C.

638) `Exoplanet Exploration Program Technology Assessment Committee Evaluation of the Star Shade Readiness Working Group Study' (presentation), NASA Astrophysics Division, NASA HQ, Washington, D.C.

2017

639) `The Shocking Story of the Origin of the Solar System' (seminar), DTM, Carnegie Institution for Science, Washington, D.C.

640) `Formation of Jupiter' (television interview), Cosmic Front science program, Japanese NHK network, Washington. D.C.

641) `Ice Particles in the Solar Nebula' (talk), NAI Proposal Planning Workshop, Carnegie Institution, BBR Campus, Washington, D.C.

642) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Advisory Committee April Meeting, NASA HQ, Washington, D.C.

643) `Exoplanets: Looking for Earth 2.0' (briefing), U.S. House of Representatives Caucus on Earth and Space Science, Washington, D.C.

644) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Advisory Committee July Meeting, NASA HQ, Washington, D.C.

645) `Astrophysics Advisory Committee Report' (APAC chair's report), NASA Advisory Council Science Committee Meeting, NASA Langley Research Center, Hampton, Virginia

646) `DTM Exoplanet Research' (invited talk), Chesapeake Bay Area Exoplanet Meeting, University of Maryland, College Park, Maryland.

647) `Exoplanet Program Analysis Group Report' (ExoPAG chair's report), NASA Astrophysics Advisory Committee October Meeting, NASA HQ, Washington, D.C.

648) `Astronomy and Astrophysics Decadal Surveys' (invited briefing), Community Technical Interchange Meeting on Future Capabilities in Space Servicing and Assembly: Opportunities for Future Astrophysics Missions, NASA Goddard Space Flight Center, Greenbelt, Maryland

649) `Universal Life: The Race to Discover Life Beyond Earth' (invited public talk), Gaithersburg Community Museum, Gaithersburg, Maryland

2018

650) `Exoplanet Program Analysis Group Activities' (splinter session talk), American Astronomical Society Meeting, National Harbor, Maryland.

651) `An Observationally Constrained Hybrid Theory of Planet Formation' (invited talk), Exoplanet Seminar Series, NASA Goddard Space Flight Center, Greenbelt, Maryland.

652) `Status of Astrobiology Science Strategy Study' (invited briefing), Spring 2018 Meeting of the Space Studies Board, National Academies of Sciences, Washington, D.C.

653) `Introductory Remarks' (co-chair's introduction), Carnegie Origins: Life Beyond Earth, Carnegie Institution for Science, Washington, D.C.

654) `Exoplanet Exploration Program Technology Assessment Committee Evaluation of the Star Shade Technology Development Program Milestone Review' (presentation), NASA Astrophysics Division, NASA HQ, Washington, D.C.

655) `Astrobiology Science Strategy Report' (Thomas Zurbuchen and NASA HQ briefing), USRA, Washington, D.C.

656) `Astrobiology Science Strategy Report' (Senate Space Subcommittee briefing), Dirksen Senate Office Building, Washington, D.C.

657) `Astrobiology Science Strategy Report' (House Space Subcommittee briefing), Ford House Office Building, Washington, D.C.

658) `Astrobiology Science Strategy Report' (public Webex briefing), National Academies of Sciences, Washington, D.C.

659) `Astrobiology Science Strategy Report' (House Appropriations Subcommittee briefing), U. S. Capitol, House Side, Washington, D.C.

660) `Astrobiology Science Strategy Report' (James Green and NASA briefing), National Academies of Sciences Keck Center, Washington, D.C.

661) `Astrobiology Science Strategy Report' (television interview), Cosmic Front science program, Japanese NHK network, Washington. D.C.

662) `Astrobiology Science Strategy Report' (Town Hall presentation), American Geophysical Union Fall Meeting, Washington, D.C.

2019

663) `Ground-based Astrometric Detection of Exoplanets with CAPSCam: Current Status' (contributed talk), 233rd Meeting of the American Astronomical Society, Seattle, Washington.

664) `Universal Life: The Race to Discover Life Beyond Earth' (invited public talk), George Mason University, Fairfax, Virginia.

665) `Universal Life: The Race to Discover Life Beyond Earth’ (invited conference opening talk), American Junior Academy of Science Annual Conference, Omni Shoreham Hotel, Washington, D.C.

666) `Supernova Triggering of Solar System Formation’ (poster), BBR Poster Session, Carnegie Institution, Washington, D.C.

667) `Astrometric Planet Searches’ (talk), Astrobiology Workshop, Green Bank Observatory, West Virginia.

668) `Universal Life: The Search for Life Beyond the Solar System’  (invited public talk), Fall Neighborhood Lecture Series, Carnegie Institution for Science, Broad Branch Road Campus, Washington, D.C.

669) `Disk Instability and GJ 3512' (radio interview), All Things Considered  Show, National Public Radio.

670) `Hybrid Exoplanet Population Synthesis Models' (talk), Carnegie Exoplanets Workshop, Broad Branch Road Campus, Washington, D.C.

2020

671) `Exoplanet Exploration Program Technology Assessment Committee Evaluation of the Extreme Precision Radial Velocity Initiative’ (remote presentation),  NASA Astrophysics Division, NASA HQ, Washington, D.C.

672) `Evolution of CAI-Sized Particles During FU Orionis Outbursts: Particle Trajectories  in Protoplanetary Disks with Beta Cooling' (remote presentation). LPSC-Z Workshop, Carnegie Earth and Planets Laboratory, Washington, D.C.

673) 'Universal Life: The Search for Life Beyond the Solar System' (invited lecture), 2nd Summer School on Planetary Sciences,  School of Earth and Space Science, University of Science and Technology of China. 

674) `Exoplanets Hunting 101' (remote presentation), 101 Lecture Series, Carnegie Earth and Planets Laboratory, Washington, D.C.

675) `Exoplanet Phosphine' (remote presentation), Planets Reading Group, Carnegie Earth & Planets Laboratory, Washington, D.C.

676) 'The Role of Gas Disk Gravitational Instability Models in Exoplanet Population Synthesis Models' (poster), Exoplanet Demographics Conference (virtual), NASA Exoplanet Sciece Institute, Pasadena, California.

2021

677) `Distant Planet Formation Models. I. Observations and Disk Instability' (remote presentation), Thematic Seminar Series, Carnegie Earth & Planets Laboratory,  Washington, D.C.

678) `Wagner+2021: Imaging Exoplanets with NEAR/VLT Around Alpha Centauri' (remote presentation), Astronomy Group Journal Club, Carnegie Earth & Planets Laboratory, Washington, D.C.

679) `Independent Review Team (IRT) Summary of Critical Design Review (CDR) for the Coronagraph Instrument (CGI) for the Roman Space Telescope' (IRT Chair virtual presentation), CGI CDR, Pasadena, CA.

680) `Independent Review Team (IRT) Summary of Critical Design Review (CDR) for the Coronagraph Instrument (CGI) for the Roman Space Telescope' (IRT Chair virtual outbrief), Astrophysics Division, NASA HQ, Washington, D.C.

681) `Cook+2021: The Return of 60Fe' (remote presentation), Carnegie Planets Reading Group, Carnegie Earth & Planets Laboratory, Washington, D.C.

2022

682) `Current Activities' (remote presentation), Astronomy Group Journal Club, Carnegie Earth & Planets Laboratory, Washington, D.C.

683) 'Magellan Instrument Review Committee Update' (remote presentation), Magellan Telescopes Science Advisory Committee Fall Meeting, Washington, D.C.

2023

684) 'Exoplanets Group History and Current Activities' (presentation), Heising-Simons Foundation representatives, Carnegie Earth & Planets Laboratory, Washington, D.C.

685) 'Magellan Instrument Review Committee Final Report' (remote presentation), Magellan Telescopes Science Advisory Committee Fall Meeting, Washington, D.C.

686) 'Population Synthesis Models for Gas Giant Exoplanets Formed by Gas Disk Gravitational Instability Around M Dwarfs' (poster), Ninth Annual GMT Community Science Meeting: Exoplanet Atmospheres to Architectures, Washington, D.C.

687) 'Forming Gas Giants Around a Range of Protostellar M-dwarfs by Gas Disk Gravitational Instability' (presentation), Astronomy Group Journal Club, Carnegie Earth & Planets Laboratory, Washington, D.C.

2024

688) 'GCM and the Carnegie Climate and Resilience Hub' (talk), EPL Flash Talk Jamboree 2024, Carnegie Earth & Planets Laboratory, Washington, D.C.

689) 'The Roman Microlensing Survey’s Confirmation or Refutation of Gas Giant Exoplanet Formation Theories' (talk), Conference on Challenging Theory with Roman: From Planet Formation to Cosmology, California Institute of Technology.

[Last updated: 25 March 2024]