List of historical guests of Planetary Radio

Planetary Radio is a weekly internationally syndicated radio broadcast astronomy and astrophysics related science show available over the air, by satellite radio, and by podcast.
==Historical guests (alphabetical)==
Many guests have spoken over the years on many episodes. They include the following in the tables hereafter:
==Table A-B==
Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B 	Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B	Planetary RadioAlphabetical Surname Listing A-B
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Andrea Acomazzo 	 	 	Operations manager 	Rosetta Mission 	 	
*20100719 	
Mark Adler 	 	 	Mission Manager - Mars Spirit Mission 	 	 	
*20050119 	
Tariq Adwan 	 	 	Palestinian (Bethlehem) biology student; Co-Investigator - GOBBS 	 	 	
*20030120 	Experiment destroyed after episode by Space Shuttle Columbia disaster. GOBBS = growth of bacterial biofilms on surface during spaceflight.
Michael A'Hearn 	Astronomer 	 	Principal Investigator 	Deep Impact 	 	2 Episodes:
*20070709
*20050110 	
Bill Ailor 	 	 	Director - Center for Orbital & Reentry Debris Studies, Aerospace Corporation	 	 	 	
Buzz Aldrin 	Astronaut 	 	Apollo 11 	 	 	5 Episodes:
*20070924
*20061030
*20060109
*20051114
*20041115	
Amir Alexander 	Writer/Editor 	 	planetary.org 	 	 	 	
Claudia Alexander 	 	 	Project Manager - Galileo Mission 	 	 	 	
Carlton Allen 	 	 	Principal Investigator - MARVEL Program 	 	 	 	
Scott D. Altman 	Astronaut 	 	 	 	 	 	
Bob Anderson 	 	 	 	 	 	 	
Clayton Anderson 	Astronaut 	 	 	 	 	 	
David Anderson 	 	 	Project Director - SETI@Home Project 	 	 	 	
John Anderson 	 	 	Senior Research Scientist, JPL 	 	 	 	
Nigel Angold 	 	 	Operations Manager - Ulysses Mission 	 	 	 	
Heather Archuletta 	 	 	Experimental test subject, NASA 	 	 	 	
Richard R. Arnold 	Astronaut 	 	Crew member - NEEMO 13 	 	 	 	
Sami Asmar 	 	 	Manager - Radio Science Group, JPL 	 	 	 	
Tim Bailey 	Space activist 	 	 	 	 	 	
Kevin Baines 	 	 	JPL 	 	 	 	
Bruce Banerdt 	 	 	Project Scientist - MER Project 	 	 	 	
Donald Banfield 	Planetary Scientist 	 	Cornell University 	 	 	 	
Jay Barbree 	 	 	Space correspondent, NBC network 	 	 	 	
Jacob Bean 	Astronomer 	 	Sagan Fellow, NASA 	 	 	 	
Reta Beebe 	Astronomer 	 	 	 	 	 	
James F. Bell, III 	 	 	Professor, Cornell University 	 	 	 	
Gregory Benford 	Astrophysicist/science fiction author 	 	 	 	 	 	
Jim Benford 	 	 	 	 	 	 	
Bob Benjamin 	Research scientist 	 	 	 	 	 	
Steven A. Benner 	 	 	Foundation for Applied Molecular Evolution 	 	 	 	
Andrew Benson 	Cosmologist 	 	Caltech 	
*galaxy formation and evolution
*Galform computer model	 	 	
Bruce Betts 	 	 	Director of Projects, The Planetary Society 	 	 	 	
Debbie Biggs 	 	 	Educational Specialist, NASA 	 	 	 	
Alan Binder 	 	 	Principal Investigator - Lunar Prospector Mission 	 	 	 	
Peter Birtwhistle 	 	 	Amateur astronomer 	 	 	 	
Bill Blair 	Astrophysicist 	 	 	 	 	 	
Scott Bolton 	 	 	Principal Investigator - JUNO Mission 	 	 	 	
André Bormanis 	Writer 	 	Star Trek writer/consultant 	 	 	 	
William Borucki 	 	 	Principal Investigator - Kepler Mission 	 	 	 	
Bill Boynton 	 	 	Lead Scientist - Phoenix TEGA 	 	 	 	
Ray Bradbury 	Science fiction author 	 	 	 	 	 	
David Brin 	Science fiction author 	 	 	 	 	 	
Michael E. Brown 	Astronomer 	 	Discoverer of Eris (dwarf planet), Caltech 	 	 	6 Episodes:
*20110613
*20110606
*20101213
*20060828
*20050815
*20040322	
Donald E. Brownlee 	 	 	Principal Investigator - Stardust Mission 	 	 	 	
Roger Buick 	 	 	Professor, University of Washington 	 	 	 	
James Burke 	 	 	Project Manager - Ranger Program 	 	 	 	
James D. Burke 	 	 	Technical Editor - The Planetary Report, The Planetary Society 	 	 	 	
Don Burnett 	 	 	Principal Investigator/Lead scientist - Genesis Mission 	 	 	 	
 	 	 	 	 	 	 	
==Table C-D==
Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D 	Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D	Planetary RadioAlphabetical Surname Listing C-D
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Mike Callahan 	 	 	Goddard Spaceflight Center, NASA 	 	 	 	
John Callas 	 	 	Program Manager - MER 	 	 	 	
James Cameron 	Director/Producer/Writer 	 	 	 	 	 	
John Casani 	 	 	Project Manager - Prometheus Project 	 	 	 	
Robert Cassanova 	 	 	Director - Institute for Advanced Concepts, NASA 	 	 	 	
Andrew Chaikin 	Author 	 	 	 	 	 	
David Charbonneau 	Astronomer 	 	Harvard 	 	 	 	
Neil Cheatwood 	 	 	Principal Investigator 	 	 	 	
Phil Christensen 	Planetary Scientist 	 	Arizona State University 	 	 	 	
Ben Clark 	 	 	Chief Scientist - Space Exploration, Lockheed Martin	 	 	 	
Arthur C. Clarke 	Science fiction author 	 	 	 	 	4 Episodes:
*20091130
*20080324
*20030707
*20030324	
Geoffrey Collins 	Planetary Scientist 	 	 	 	 	 	
Joy Crisp 	 	 	Project Scientist - MER 	 	 	 	
Carolyn Crow 	 	 	Faculty Research Assistant, University of Maryland 	 	 	 	
Glen Cushing 	Planetary Scientist 	 	 	 	 	 	
Shana Dale 	 	 	Deputy Administrator, NASA 	 	 	 	
Thomas Dame 	Radio Astronomer 	 	 	 	 	 	
Paul Davies 	Cosmologist 	 	 	 	 	 	
Matt Dawson 	 	 	 	 	 	 	
Imke de Pater 	Astronomer 	 	 	 	 	 	
John Delaney 	Oceanographer 	 	 	 	 	 	
Greg Delorey 	 	 	Developer 	Mars Microphone 	 	 	
Tilmann Denk 	 	 	Free University of Berlin 	 	 	 	
Peter Diamandis 	 	 	Chairman - X Prize Foundation 	 	 	 	
Don Dixon (artist) 	Space Artist 	 	 	 	 	 	
Laurance Doyle 	 	 	Principal Investigator 	 	 	 	
Frank Drake 	 	 	SETI Institute 	 	 	 	
Courtney Dressing 	 	 	Student astronaut 	 	 	 	
Ann Druyan 	 	 	 	 	 	 	
Dan Durda 	Astronomer, Astronomical artist 	 	NEO 	 	 	 	
Tom Duxbury 	 	 	JPL 	 	 	 	
Freeman Dyson 	 	 	 	 	 	 	
 	 	 	 	 	 	 	
==Table E-G==
Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G 	Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G	Planetary RadioAlphabetical Surname Listing E-G
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Ken Edgett 	 	 	Malin Space Science Systems 	 	 	 	
Charles Elachi 	 	 	Director - JPL 	 	 	 	
Annmarie Eldering 	 	 	Deputy Manager - Earth Atmospheric Science Section, JPL 	 	 	 	
Richard Ellis 	Astronomer 	 	Professor - Astronomy, Caltech 	 	 	 	
Doug Ellison 	 	 	Founder - unmannedspaceflight.com 	 	 	 	
Jim Erickson 	 	 	Project Manager - MER 	 	 	 	
Francis Everitt 	 	 	Principal Investigator - Gravity Probe B 	 	 	 	
Wolfgang Fink 	Physicist/Robotocist 	 	Caltech 	 	 	 	
Debra Fischer 	Astronomer 	 	 	 	 	 	
Bernard Foing 	 	 	Chief Scientist - ESAProject Scientist - SMART-1 	 	 	 	
Jonathan Frakes 	 	 	Director - Thunderbirds 	 	 	 	
Louis Friedman 	 	 	Executive Director - The Planetary Society 	 	 	 	
Satoshi Furukawa 	 	 	Crew member - NEEMO 13 	 	 	 	
Daniel Gaines 	Engineer 	 	JPL 	 	 	 	
Owen K. Garriott 	Astronaut 	 	 	 	 	 	
Lori Garver 	 	 	(Former) Associate Administrator for Policy and Plans, NASA 	 	 	 	
James Garvin 	 	 	Chief Scientist, NASA 	 	 	 	
Scott Gaudi 	Astronomer 	 	 	 	 	 	
Pamela L. Gay 	Astronomer 	 	Co-host - Astronomy Cast 	 	 	 	
Neil Gehrels 	 	 	Principal Investigator - Swift 	 	 	 	
Mark Gittelman 	 	 	Vice President & General Manager - Oceaneering Space Systems	 	 	 	
Walter Goetz 	 	 	Magnet team member - MER, University of Copenhagen 	 	 	 	
Dan Goldin 	 	 	 	 	 	 	
Barry Goldstein 	 	 	Project Manager - Phoenix 	 	 	 	
Matt Golombek 	 	 	Co-Chair - MER Landing Site 	 	 	 	
Jim Graf 	 	 	Project Manager - MRO 	 	 	 	
Douglas Graham 	 	 	XCOR Aerospace 	 	 	 	
 	Stephen Grasby 	 	 	Geologic Survey of Canada 	 	 	
Jeff Greason 	 	 	CEO - XCOR Aerospace 	 	 	 	
Jack Gregg 	 	 	Head - California Space Education & Workforce Institute 	 	 	 	
Michael Griffin 	 	 	NASA Administrator 	 	 	 	
Javier Guedes 	Astrophysicist 	 	 	 	 	 	
Lika Guhathakurta 	 	 	Program Scientist - Solar Probe Plus 	 	 	 	
Don Gurnett 	 	 	Team Lead - Radio and Plasma Wave Science, Cassini Mission 	 	 	 	
Pablo Gutierrez-Marques 	 	 	Framing Camera Flight Manager - DAWN Mission 	 	 	 	
 	 	 	 	 	 	 	
==Table H-K==
Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K 	Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K	Planetary RadioAlphabetical Surname Listing H-K
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Albert Haldemann 	 	 	Deputy Project Scientist - MER 	 	 	 	
Howard Hall 	 	 	Under the Sea 3D 	 	 	 	
Michelle Hall 	 	 	Under the Sea 3D 	 	 	 	
Heidi Hammel 	Planetary Scientist 	 	Board Member - The Planetary Society 	 	 	 	
Rick Hanton 	 	 	Chair - SEDS (USA) 	 	 	 	
Joe Harrington 	 	 	Team Member - Spitzer Space Telescope 	 	 	 	
Alan W. Harris 	 	 	NEO 	 	 	 	
William Kenneth Hartmann 	Planetary Scientist 	 	 	 	 	 	
Stephen Hawking 	Physicist 	 	 	 	 	 	
Amanda Hendrix 	Planetary Scientist 	 	LRO Participating Scientist 	lunar water 	 	 	
Ken Herkenhoff 	 	 	Lead Scientist - Microscopic Imager, MER 	 	 	 	
Homer Hickam 	Engineer 	 	 	(Former) Engineer, NASA 	 	 	
Paul Hill 	 	 	 	 	 	 	
Victoria Hipkin 	 	 	Lead Scientist - Phoenix MET 	 	 	 	
Jeff Hoffman 	Astronaut 	 	 	 	 	 	
Mark Hofstadter 	 	 	JPL 	 	 	 	
Robert Holmes 	 	 	Shoemaker NEO grant recipient 	 	 	 	
Jack Holt 	 	 	University of Texas, Austin 	 	 	 	
Paul Horowitz 	Astrophysicist 	 	Harvard 	 	 	 	
Robert Lee Hotz 	Science writer 	 	Los Angeles Times; Pulitzer Prize winner 	 	 	 	
Justin Houchin 	Student 	 	 	May be first teenager in space. 	 	 	
Andrew Howard 	 	 	 	 	 	 	
Steve Howell 	Astrophysicist 	 	 	 	 	 	
Steve Hughes 	Engineer 	 	Lead Engineer - IRVE 	 	 	 	
Wes Huntress 	 	 	(Former) Associate Administrator, NASA; President - The Planetary Society	 	 	 	
Wendy Jaeger 	Planetary scientist 	 	 	 	 	 	
Thomas Janka 	 	 	Max Planck Institute for Astrophysics 	 	 	 	
Lindley Johnson 	 	 	NASA 	 	 	 	
Torrence Johnson 	 	 	 	 	 	 	
Thomas David Jones 	Astronaut 	 	 	 	 	 	
Mat Kaplan 	Producer 	 	Host - Planetary Radio 	 	 	 	
Junichiro Kawaguchi 	 	 	Project Manager - Hayabusa Mission 	 	 	 	
Charles Kennel 	 	 	Chair - Space Studies Board 	 	 	 	
Bettyann Kevles 	Author 	 	 	 	 	 	
Vickie Kloeris 	 	 	Food scientist, NASA 	 	 	 	
Andrew Knoll 	Biologist 	 	Harvard University; Science Team Member - MER 	 	 	 	
Charley Kohlhase 	Engineer/Artist 	 	Designer - Cassini-Huygens Mission 	 	 	 	
Detlef Koschny 	 	 	European Space Operations Centre 	 	 	 	
Michael Krepon 	 	 	Head - Space Security Project 	 	 	 	
Liz Kruesi 	Astrophysicist 	 	Graduate student 	 	 	 	
 	 	 	 	 	 	 	
==Table L-M==
Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M 	Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M	Planetary RadioAlphabetical Surname Listing L-M
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Emily Lakdawalla 	 	 	Science & Technology Coordinator, The Planetary Society 	 	 	 	
Yuval Landau 	 	 	Israeli medical student; Co-Investigator - GOBBS 	 	 	
*20030120 	Experiment destroyed after episode by Space Shuttle Columbia disaster. GOBBS = growth of bacterial biofilms on surface during spaceflight.
Lonne Lane 	 	 	JPL 	 	 	 	
Jean-Pierre Lebreton 	 	 	Manager/Project Scientist - Cassini-Huygens Mission 	 	 	 	
Wayne Lee 	 	 	Chief Engineer - Descent & Landing, MER Entry 	 	 	 	
Guillermo Lemarchand 	 	 	Director - Southern SETI 	 	 	 	
Mark Lemmon 	 	 	Lead Scientist - Phoenix SSI 	 	 	 	
Laurie Leshin 	 	 	Principal Investigator - SCIM 	 	 	 	
Joel Levine 	 	 	Principal Investigator - ARES 	 	 	 	
Hal Levison 	 	 	Southwest Research Institute 	 	 	 	
Chris Lewicki 	 	 	Flight Director - MER 	 	 	 	
John Lewis 	Planetary Scientist 	 	 	 	 	 	
Tim Lilburn 	 	 	Scientist - ATCC 	 	 	 	
Slava Linkin 	 	 	Russian Federation Space Research Institute 	 	 	 	
Alexis Livanos 	 	 	President - Space Technology, Northrup Grumman 	 	 	 	
Mario Livio 	 	 	Space Telescope Science Institute 	 	 	 	
Daniel Lockney 	 	 	Editor - Annual Spinoff Report, NASA 	 	 	 	
Jon Lomberg 	 	 	Director - Visions of Mars Project 	 	 	 	
Rosaly Lopes 	 	 	 	 	 	 	
M.G. Lord 	Author 	 	Astro Turf: The Private Life of Rocket Science 	 	 	 	
Ralph Lorenz 	Planetary Scientist 	 	 	 	 	 	
Christophe Lovis 	 	 	Geneva Observatory 	 	 	 	
Sandy Magnus 	Astronaut 	 	 	 	 	 	
Rob Manning 	 	 	Development Manager - Entry, Descent & Landing - MER 	 	 	 	
Geoffrey Marcy 	Astronomer 	 	UC Berkeley 	 	 	 	
Brian Marsden 	 	 	Retired Director - IAU Minor Planet Center 	 	 	 	
Robin Mason 	Film Producer 	 	 	 	 	 	Wife of Todd.
Todd Mason 	Film Producer 	 	 	 	 	 	Husband of Robin.
Richard Massey 	Astronomer 	 	 	 	 	 	
Jake Maule 	 	 	AMASE (Arctic Mars Analogue Svalbard Expedition) 	 	 	 	
Peter Mayer 	Folksinger 	 	 	 	 	 	
Hal McAlister 	 	 	Director - Mount Wilson Institute 	 	 	
*20090907 	
Patrick McCarthy 	 	 	Director - GMT (Giant Magellan Telescope) 	 	 	 	
Dan McClese 	 	 	Principal Investigator - Mars Climate Sounder (Mars Reconnaissance Orbiter)	 	 	 	
Art McDonald 	 	 	Director - Sudbury Neutrino Observatory 	 	 	 	
Alfred McEwen 	 	 	Principal Investigator - HiRISE 	 	 	 	
Lucy McFadden 	Planetary Scientist 	 	 	 	 	 	
James McGaha 	 	 	Amateur Astronomer 	 	 	 	
Chris McKay 	Planetary Scientist 	 	 	 	 	 	
Bill McKinnon 	Planetary Scientist 	 	 	 	 	 	
Curtis Mead 	 	 	Research Assistant - All-Sky Optical SETI 	 	 	 	
Abel Mendez 	 	 	Associate Professor - University of Puerto Rico at Arecibo 	 	 	 	
Michael Meyer 	Astronomer 	 	University of Arizona 	 	 	 	
Neil Milburn 	 	 	Vice President & Co-Founder - Armadillo Aerospace 	 	 	 	
Berrien Moore 	 	 	Executive Director - Climate Central 	 	 	 	
Rafael Morozowski 	 	 	Student astronaut 	 	 	 	
David Morrison 	 	 	Interim Director - Lunar Science Institute 	 	 	 	
Philip Morrison 	Physicist 	 	SETI pioneer 	 	 	 	
Michael Mumma 	 	 	Director - Goddard Center for Astrobiology, NASA 	 	 	 	
Bruce Murray 	 	 	Co-Founder - The Planetary Society 	 	 	 	
Elon Musk 	 	 	Founder - SpaceX 	 	 	 	
Toni Myers 	Producer/Director 	 	 	 	 	 	
 	 	 	 	 	 	 	
==Table N-S==
Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S 	Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S	Planetary RadioAlphabetical Surname Listing N-S
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Glen Nagle 	 	 	Education & Outreach Manager - Canberra Deep Space Communication Complex	 	 	 	
Rafael Navarro-Gonzalez 	Researcher 	 	 	 	 	 	
Gerhard Neukum 	 	 	 	 	 	 	
Bob Nichol 	 	 	Scientific Spokesperson - Sloan Digital Sky Survey 	 	 	 	
Nichelle Nichols 	Actress 	 	Star Trek 	 	 	 	
Bill Nye 	 	 	The Science Guy 	 	 	 	
James Oberg 	Writer 	 	Expert - international space programs 	 	 	 	
Adriana Ocampo 	 	 	Senior scientist - ESA 	 	 	 	
Michael Okuda 	 	 	Star Trek 	 	 	 	
Steve Ostro 	Radar astronomer 	 	 	 	 	 	
Tobias Owen 	Planetary Scientist 	 	 	 	 	 	
Larry Page 	 	 	Co-Founder - Google 	 	 	 	
Robert (Bob) Pappalardo 	 	 	 	 	 	 	
Tim Parker 	 	 	JPL 	 	 	 	
Nicholas Patrick 	 	 	NEEMO 13 Crew 	 	 	 	
Robert Picardo 	Actor 	 	Star Trek 	 	 	 	
Carle Pieters 	Planetary Scientist 	 	 	 	 	 	
Phil Plait 	 	 	The Bad Astronomer 	 	 	 	
Jeffrey Plaut 	 	 	JPL 	 	 	 	
Tom Prince 	Physicist 	 	 	 	 	 	
Linda Purl 	Actress 	 	 	 	 	 	
Margaret Race 	Ecologist 	 	 	 	 	 	
Jon Ramer 	Space artist 	 	 	 	 	 	
Lisa Randall 	Physicist 	 	Harvard 	 	 	 	
Marc Rayman 	Engineer 	 	Project System Engineer - DAWN Mission 	 	 	 	
Nilton Renno 	 	 	University of Michigan 	 	 	 	
John Rhys-Davies 	 	 	 	 	 	 	
Jeff Richichi 	 	 	Director - Structural Design, SpaceX 	 	 	 	
Andrew Rivkin 	Planetary Scientist 	 	 	 	 	 	
Mary Roach 	Author 	 	 	 	 	 	
Massimo Robberto 	Astronomer 	 	 	 	 	 	
Kim Stanley Robinson 	Science fiction author 	 	 	 	 	 	
Rod Roddenberry 	Writer 	 	 	 	 	 	
Alexis Rodriguez 	Research scientist 	 	Planetary Science Institute 	 	 	 	
Lawrence Rudnick 	Astronomer 	 	 	 	 	 	
John Rummel 	 	 	 	 	 	 	
Sally Ride 	Astronaut 	 	First U.S. woman in space 	 	 	 	
Chris Russell 	 	 	Principal Investigator - DAWN 	 	 	 	
Burt Rutan 	 	 	SpaceShipOne 	 	 	 	
Roald Sagdeev 	 	 	Former Director - Soviet Space Research Institute 	 	 	 	
Gerry Sanders 	 	 	In Situ Resource Utilization Project, NASA 	 	 	 	
Scott Sanford 	 	 	Co-Investigator - Stardust 	 	 	 	
Harrison Schmitt 	Astronaut 	 	Moonwalker 	 	 	 	
Gerhard Schwehm 	 	 	Scientist - Rosetta Project 	 	 	 	
Rusty Schweickart 	Astronaut 	 	Apollo 9; Chairman - B612 Foundation 	 	 	 	
Ben Shelef 	 	 	Founder - Spaceward Foundation 	 	 	 	
Donna Shirley 	 	 	Advisory Council - The Planetary Society 	 	 	 	
Seth Shostak 	 	 	SETI Institute 	 	 	 	
Mark Showalter 	Planetary Astronomer 	 	 	 	 	 	
Mike Simmons 	Astronomer 	 	
*President - Astronomers Without Borders
*Co-Chair - 100 Hours of Astronomy	 	 	2 Episodes:
*20100405
*20090309 	
Amy Smith 	Scientist 	 	ATCC 	 	 	 	
Peter Smith 	 	 	Principal Investigator - Phoenix Mission 	 	 	 	
Dava Sobel 	Author 	 	 	 	 	 	
B. Thomas Soifer 	 	 	Director - Spitzer Science Center 	 	 	 	
Claudio Sollazzo 	 	 	Operations Manager 	 	 	 	
Sean Solomon 	 	 	Principal Investigator - MESSENGER 	 	 	 	
John Spencer 	 	 	President & Founder - Space Tourism Society 	 	 	 	
Linda Spilker 	 	 	Project Scientist - Cassini 	 	 	 	
Tom Spilker 	Engineer 	 	JPL 	 	 	 	
Steve Squyres 	 	 	Principal Investigator - Athena science payloads, MER rovers 	 	 	 	
Andrew Stanton 	 	 	Creator - WALL-E 	 	 	 	
Andrew Steele 	 	 	AMASE (Arctic Mars Analogue Svalbard Expedition) 	 	 	 	
Alan Stern 	 	 	Principal Investigator - New Horizons Mission (Pluto) 	 	 	 	
David Stevenson 	Planetary scientist 	 	Caltech 	 	 	 	
Ellen Stofan 	 	 	Radar Team - Cassini 	 	 	 	
Ed Stone 	 	 	Chief Scientist - Voyager Interstellar Mission 	 	 	 	
Woody Sullivan 	Astronomer 	 	University of Washington 	 	 	 	
Jessica Sunshine 	Spectroscopist 	 	Co-Investigator - Deep Impact 	 	 	 	
Hakan Svedhem 	 	 	Project Scientist - Venus Express 	 	 	 	
Mark Swain 	 	 	JPL 	 	 	 	
Mark Sykes 	 	 	Director - Planetary Science Institute 	 	 	 	
 	 	 	 	 	 	 	
==Table T-Z==
Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z 	Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z	Planetary RadioAlphabetical Surname Listing T-Z
Guest 	Occupation 	Episode (chronological) 	Capacity/Affiliation 	Topic 	Interviewer 	Original airdate (YYYYMMDD) 	Notes
Alex Tai 	 	 	Vice President - Operations, Virgin Galactic 	 	 	 	
Kenneth Tanaka 	 	 	USGS 	 	 	 	
Jill Tarter 	 	 	SETI Institute 	 	 	 	
Stacy Tearne 	 	 	Communications Director - Space Adventures 	 	 	 	
Robert Bruce Thompson 	Author 	 	Co-author - Illustrated Guide to Astronomical Wonders 	 	 	 	
Tim Titus 	Planetary Scientist 	 	 	 	 	 	
Clyde Tombaugh 	Astronomer 	 	Discoverer of Pluto 	 	 	 	
Roy Tucker 	 	 	 	 	 	 	
Elizabeth Turtle 	Planetary Scientist 	 	 	 	 	 	
Slava Turyshev 	Research Scientist 	 	JPL 	 	 	 	
Neil deGrasse Tyson 	Astronomer 	 	Director - Hayden Planetarium 	 	 	 	
Stephane Udry 	Astronomer 	 	 	 	 	 	
Mark Uhran 	 	 	Assistant Associate Administrator (International Space Station), NASA	 	 	 	
Jurrie van der Woude 	 	 	 	 	 	 	
Max Vasile 	 	 	University of Glasgow 	 	 	 	
Faith Vilas 	 	 	Planetary Science Institute 	 	 	 	
John Vilja 	 	 	Rocketdyne Program Manager, Pratt & Whitney 	 	 	 	
Richard Vondrak 	 	 	Project Scientist - Lunar Reconnaissance Orbiter 	 	 	 	
Mary Voytek 	 	 	Program Director - Astrobiology, NASA 	 	 	 	
Bettye Walker 	 	 	Co-Founder - A-Man International Science Discovery & Learning Center 	 	 	 	
Hal Walker 	 	 	Co-Founder - A-Man International Science Discovery & Learning Center 	 	 	 	
Steve Wall 	 	 	Deputy Team Leader - Cassini RADAR 	 	 	 	
David Warmflash 	 	 	Astrobiology Institute, NASA 	
*GOBBS 	 	3 Episodes:
*20030505
*20030203
*20030120GOBBS 	
*A: GOBBS experiment destroyed after episode by Space Shuttle Columbia disaster. GOBBS = growth of bacterial biofilms on surface during spaceflight.
Edward Weiler 	 	 	Associate Administrator, NASA 	 	 	 	
Dan Wertheimer 	 	 	SETI Chief Scientist, UC Berkeley 	 	 	 	
Andrew Westphal 	 	 	Science Team Member, Stardust 	 	 	 	
Cheryl Wheeler 	Singer/songwriter 	 	 	 	 	 	
Roger Wiens 	 	 	Team Member, Genesis Mission 	 	 	 	
Mark Wolverton 	Author 	 	 	 	 	 	
Al Worden 	Astronaut 	 	Command Module Pilot - Apollo 15 	 	 	 	
Ned Wright 	 	 	Principal Investigator - WISE 	 	 	 	
Beth Wusk 	 	 	Project Manager - IRVE 	 	 	 	
J. Judson Wynne 	Speleologist 	 	USGS 	 	 	 	
Quanzhi Ye 	 	 	Grant recipient - Shoemaker NEO Program 	 	 	 	
Don Yeomans 	 	 	Manager - NEO Program Office, NASA 	 	 	 	
John Young 	Astronaut 	 	 	 	 	 	
Alexander V. Zakharov 	 	 	Russian Space Research Institute 	 	 	 	
Robert Zubrin 	Aerospace engineer/author 	 	Founder - The Mars Society 	 	 	 	
Richard Zurek 	 	 	Project Scientist - MRO 	 	 	 	
 	 	 	 	 	 	 	
Category:The Planetary Society
Planetary Radio
Planetary Radio