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Visions of Mars Landing May 25.
  

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All guests, sorted alphabetically by last name.
Select a guest to view a list of appearances.
  1. Mike A'Hearn, Deep Impact's Principal Investigator
  2. Mark Adler, Spirit Mission Manager
  3. Tariq Adwan,
  4. Buzz Aldrin, Apollo 11 Astronaut
  5. Amir Alexander, Writer and Editor for planetary.org
  6. Claudia Alexander, Galileo Project Manager
  7. Carlton Allen, Curator, Johnson Space Center Astromaterials Lab
  8. Mark Allen, Principal Investigator for MARVEL
  9. Bob Anderson,
  10. Clay Anderson, Astronaut
  11. David Anderson, Director, SETI@Home
  12. John Anderson, JPL Senior Research Scientist
  13. Richard Arnold, NEEMO 13 Crew
  14. Sami Asmar, Manager of the Radio Science Group at the Jet Propulsion Laboratory
  15. Kevin Baines, planetary scientist
  16. Donald Banfield, Cornell planetary scientist
  17. Reta Beebe, Astronomer
  18. Jim Bell, Cornell professor
  19. Greg Benford,
  20. Jim Benford,
  21. Steve Benner, Foundation for Applied Molecular Evolution
  22. Bruce Betts, Director of Projects, The Planetary Society
  23. Alan Binder, Principal Investigator for Lunar Prospector
  24. Peter Birtwhistle, Amateur Astronomer
  25. Bill Blair, Astrophysicist
  26. Andre Bormanis, Star Trek writer and consultant
  27. Ray Bradbury, Author
  28. David Brin, Science Fiction Author
  29. Mike Brown, an astronomer at CalTech and co-discoverer of the furthest kuiper belt object to orbit our sun
  30. Don Brownlee, Stardust Principal Investigator
  31. James D. Burke, Technical Editor of The Planetary Report
  32. Don Burnett, Genesis mission principal investigator and lead scientist
  33. John Callas, Mars Exploration Rover Program Manager
  34. James Cameron, Director, Producer, Writer
  35. John Casani, Prometheus Project Manager
  36. Robert Cassanova, Director of the NASA Institute for Advanced Concepts
  37. David Charbonneau, Harvard Astronomer
  38. Phil Christensen, Arizona State University planetary scientist
  39. Ben Clark, Lockheed Martin's Chief Scientist of Space Exploration
  40. Arthur C. Clarke, Author
  41. Geoffrey Collins, Planetary Scientist
  42. Joy Crisp, Project Scientist for the Mars Exploration Rover mission
  43. Glen Cushing, planetary scientist
  44. Shana Dale, NASA Deputy Administrator
  45. Matt Dawson,
  46. Imke de Pater, Astronomer
  47. Neil deGrasse Tyson, Director of the Hayden Planetarium in New York
  48. John Delaney, Oceanographer
  49. Greg Delory, University of California, Berkeley
  50. Tilmann Denk, Free University of Berlin
  51. Peter Diamandis, Chairman, X Prize Foundation
  52. Don Dixon, Space Artist
  53. Courtney Dressing, Student Astronaut
  54. Ann Druyan,
  55. Dan Durda, Near Earth Object astronomer and astronomical painter
  56. Tom Duxbury, Jet Propulsion Laboratory
  57. Freeman Dyson,
  58. Ken Edgett, Malin Space Science Systems
  59. Charles Elachi, Jet Propulsion Laboratory Director
  60. Annmarie Eldering, Deputy Manager of JPL's Earth Atmospheric Science Section
  61. Doug Ellison, blogger and founder of unmannedspaceflight.com
  62. Jim Erickson, Mars Exploration Rover Project Manager
  63. Bernard Foing, Project Scientist for SMART-1
  64. Jonathan Frakes, Director of Thunderbirds
  65. Louis Friedman,
  66. Satoshi Furukawa, NEEMO 13 Crew
  67. Owen Garriott,
  68. Lori Garver, Former Associate Administrator for Policy and Plans at NASA
  69. James Garvin, NASA's Chief Scientist
  70. Neil Gehrels, Principal Investigator for Swift
  71. Walter Goetz, Mars Exploration Rovers magnet team member from the University of Copenhagen
  72. Dan Goldin,
  73. Matt Golombek, Co-chair, Mars Exploration Rover Landing Site
  74. Jim Graf, MRO Project Manager
  75. Douglas Graham, XCOR Aerospace
  76. Stephen Grasby, Geologic Survey of Canada
  77. Jeff Greason, CEO, XCOR Aerospace
  78. Michael Griffin, NASA Administrator
  79. Albert Haldemann, Deputy Project Scientist for the Mars Exploration Rover mission
  80. Heidi Hammel, planetary scientist and Planetary Society Board member
  81. Joe Harrington, Spitzer Space Telescope team member
  82. Alan Harris, one of many scientists working to protect our little planet from Near Earth Objects
  83. William Hartmann, Planetary scientist, author, and artist
  84. Ken Herkenhoff, Lead Scientist for the Mars Exploration Rover's Microscopic Imager
  85. Homer Hickam, Author and Former NASA Engineer
  86. Paul Hill,
  87. Jeff Hoffman, Astronaut
  88. Mark Hofstadter, Jet Propulsion Laboratory
  89. Paul Horowitz, Harvard Astrophysicist
  90. Robert Lee Hotz, a Pulitzer Prize-winning science writer for the Los Angeles Times
  91. Justin Houchin, a 17-year-old from Sunland, California, could be the first teenager in space
  92. Andrew Howard,
  93. Steve Howell, Astrophysicist
  94. Wes Huntress, Planetary Society President and Former NASA Associate Administrator
  95. Wendy Jaeger, planetary scientist
  96. Thomas Janka, Max Planck Institute for Astrophysics
  97. Torrence Johnson,
  98. Tom Jones, Astronaut
  99. Junichiro Kawaguchi, Hayabusa Project Manager
  100. Bettyann Kevles, Author
  101. Andrew Knoll, Harvard biologist and science team member for the Mars Rover project
  102. Charley Kohlhase, Engineer, Artist, Cassini Mission Designer
  103. Detlef Koschny, European Space Operations Centre
  104. Michael Krepon, Head of the Space Security Project
  105. Liz Kruesi, Astrophysics Graduate Student
  106. Emily Lakdawalla, Science and Technology Coordinator, The Planetary Society
  107. Yuval Landau,
  108. Jean-Pierre Lebreton, Huygens Mission Manager and Project Scientist
  109. Wayne Lee, Mars Exploration Rover Entry, Descent and Landing Chief Engineer
  110. Guillermo Lemarchand, Director of Southern SETI
  111. Laurie Leshin, Principal Investigator for SCIM
  112. Joel Levine, Principal Investigator for ARES
  113. Chris Lewicki, Flight Director for the Mars Exploration Rover Missions
  114. Slava Linkin, Russian Federation Space Research Institute
  115. Mario Livio, Space Telescope Science Institute
  116. Jon Lomberg, Visions of Mars Project Director
  117. Rosaly Lopes,
  118. M. G. Lord, Author of Astro Turf
  119. Christophe Lovis, Geneva Observatory
  120. Rob Manning, Entry, Descent and Landing Development Manager for Spirit and Opportunity
  121. Geoff Marcy, UC Berkeley astronomer
  122. Brian Marsden, Retired Director of the IAU's Minor Planet Center
  123. Richard Massey, Astronomer
  124. Jake Maule, Arctic Mars Analogue Svalbard Expedition
  125. Dan McClese, Mars Reconnaissance Orbiter Mars Climate Sounder principal investigator
  126. Art McDonald, Director of the Sudbury Neutrino Observatory
  127. Alfred McEwen, Principal Investigator for HiRISE
  128. Lucy McFadden, Deep Impact Co-Investigator
  129. James McGaha, Amateur Astronomer
  130. Chris McKay, planetary scientist
  131. Bill McKinnon, planetary scientist
  132. Curtis Mead, Research Assistant, All-Sky Optical SETI
  133. Michael Meyer, Astronomer, University of Arizona
  134. Rafael Morozowski, Student Astronaut
  135. Philip Morrison, Famed Physicist and SETI Pioneer
  136. Bruce Murray, Chairman of the Board of Directors of The Planetary Society
  137. Elon Musk, Founder of SpaceX
  138. Gerhard Neukum,
  139. Nichelle Nichols,
  140. Bill Nye,
  141. James Oberg, Writer and expert on international space programs
  142. Adriana Ocampo, Senior Scientist, European Space Agency
  143. Mike Okuda, graphic artist, Star Trek
  144. Steve Ostro, Radar Astronomer
  145. Toby Owen, Planetary Scientist
  146. Larry Page, Google co-founder
  147. Bob Pappalardo, Principal Scientist, Jet Propulsion Laboratory
  148. Tim Parker, Jet Propulsion Laboratory
  149. Nicholas Patrick, NEEMO 13 Crew
  150. Robert Picardo, Actor and director
  151. Jeffrey Plaut, Jet Propulsion Laboratory
  152. Linda Purl, Actor
  153. Margaret Race, Ecologist
  154. Lisa Randall, Harvard physicist
  155. Marc Rayman, Dawn Project System Engineer
  156. John Rhys-Davies,
  157. Sally Ride, First American Woman in Space
  158. Massimo Robberto, Astronomer
  159. Kim Robinson, Science Fiction Author
  160. Kim Stanley Robinson, Science Fiction Author
  161. Rod Roddenberry, writer
  162. Lawrence Rudnick, Astronomer
  163. John Rummel,
  164. Chris Russell, Dawn Principal Investigator
  165. Burt Rutan, SpaceShipOne
  166. Roald Sagdeev, former Director of the Soviet Space Research Institute
  167. Gerry Sanders, NASA's In Situ Resource Utilization Project
  168. Scott Sandford, Co-Investigator, Stardust
  169. Harrison Schmitt, geologist, engineer, entrepreneur and former US Senator
  170. Gerhard Schwehm, Rosetta Project Scientist
  171. Rusty Schweickart, B612 Foundation Chairman and Apollo 9 Astronaut
  172. Ben Shelef, Spaceward Foundation Co-founder
  173. Donna Shirley, Planetary Society Advisory Council
  174. Mark Showalter, planetary astronomer
  175. Peter Smith, Principal Investigator for Phoenix
  176. Dava Sobel, Author
  177. B. Thomas Soifer, Director of the Spitzer Science Center
  178. Claudio Sollazzo, Mission Operations Manager
  179. Sean Solomon, Principal Investigator for MESSENGER
  180. John Spencer, President and Founder, Space Tourism Society
  181. Linda Spilker, Cassini Deputy Project Scientist
  182. Tom Spilker, JPL Engineer
  183. Steve Squyres, Mars Exploration Rover Principal Investigator
  184. Andrew Steele, Arctic Mars Analogue Svalbard Expedition
  185. Alan Stern, Principal Investigator, New Horizons
  186. S. Alan Stern, Principal Investigator of New Horizons Mission to Pluto
  187. David Stevenson, Caltech planetary scientist
  188. Ellen Stofan, Cassini Radar Team
  189. Ed Stone, Former Director of the Jet Propulsion Laboratory
  190. Woody Sullivan, UW Astronomer
  191. Jessica Sunshine, spectroscopist and Deep Impact co-investigator
  192. Hakan Svedhem, Project Scientist for Venus Express
  193. Håkan Svedhem, Venus Express Project Scientist
  194. Mark Swain, Jet Propulsion Laboratory
  195. Mark Sykes, Director of the Planetary Science Institute
  196. Alex Tai, Vice President for Operations, Virgin Galactic
  197. Kenneth Tanaka, United States Geological Survey
  198. Stacy Tearne, Director of Communications, Space Adventures
  199. Tim Titus, planetary scientist
  200. Clyde Tombaugh, Pluto's discoverer
  201. Roy Tucker,
  202. Elizabeth Turtle, Planetary scientist
  203. Slava Turyshev, JPL Research Scientist
  204. Stephane Udry, Astronomer
  205. Jurrie van der Woude,
  206. John Vilja, Pratt and Whitney Rocketdyne's Program Manager
  207. Bettye Walker, Cofounder, A-Man International Science Discovery & Learning Center
  208. Hal Walker, Cofounder, A-Man International Science Discovery & Learning Center
  209. Steve Wall, Deputy Team Leader, Cassini RADAR
  210. David Warmflash, NASA Astrobiology Institute
  211. Edward Weiler, NASA Associate Administrator
  212. Dan Wertheimer, UC Berkeley SETI Chief Scientist
  213. Andrew Westphal, U.C. Berkeley, Stardust@home Project Director
  214. Cheryl Wheeler, Singer, Songwriter
  215. Roger Wiens, Genesis team member
  216. Mark Wolverton, Author
  217. Don Yeomans, Manager of NASA's Near Earth Object Program Office
  218. John Young, Astronaut
  219. Alexander Zakharov, Russian Space Research Institute
  220. Rich Zurek, MRO Project Scientist