GLUMCI
Erik Thompson
Self - Narrator- Alex Filippenko
Self - Astrophysicist - Laura Danly
Self - Griffith Observatory - Clifford V. Johnson
Self - Univ. of Southern California - Michio Kaku
Self - Theoretical physicist - Amy Mainzer
JPL - Greg Laughlin
Self - Univ. of California, Santa Cruz 
Neil deGrasse Tyson
Self - Astrophysicist- Rob Roy Britt
Self - Livescience.com - Michelle Thaller
Self - Caltech - Travis Taylor
Self - Engineer & Physicist - Chris McKay
Self - NASA Senior Scientist - Kevin R. Grazier
Self - Planetary Scientist - Lucianne Walkowicz
Self - Princeton University - Don Yeomans
JPL - Holly Gilbert
Self - NASA - Sean Carroll
Himself - Theoretical Physicist - Adam Frank
Self - Bruce Betts
Self - The Planetary Society - Mike Brown
Self - Professor of Planetary Astronomy, Caltech - Seth Shostak
Self - Astronomer - Adam Showman
Self - University of Arizona - William Hartmann
Self - Planetary Science Center - Dan Durda
Self - Southwest Research Institute - Geoff Marcy
Self - Pamela L. Gay
Self - David Grinspoon
Self - Planetary Science Institute - Peter H. Schultz
Self - Brown University - Kenneth Nealson
Self - Univ. of Southern California
REžISER
SCENARIST
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- ...(additional writing)
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- ...(supervising writer)
