Reparto (20)
Mike RoweNarrator
Erik DellumsHimself - NarratorChris MckaySelf - AstrobiologistCarly HowettSelf - Planetary ScientistNina LanzaSelf - Planetary Scientist
Hakeem Muata OluseyiSelf - AstrophysicistAmber StraughnSelf - AstrophysicistMoogega CooperSelf - Planetary Protection EngineerMax TegmarkSelf - Theoretical PhysicistJani RadebaughSelf - Planetary ScientistAlex PhilippenkoSelf - AstrophysicisKatie FreeseSelf - Cosmologist
Dan DurdaSelf - Planetary ScientistGrant TremblaySelf - Astrophysicist
Kevin J. WalshSelf - AstronomerChiara MingarelliSelf - AstrophysicistPaul M SutterSelf - Astrophysicist
Michelle ThallerSelf - Astronomer
Phil PlaitSelf - Astronomer
James S. BullockSelf - Astrophysicist