Reparto (por orden de créditos)
Erik Dellums
Narrator
Hakeem Oluseyi
Self
Michael Massimino
Self - Astronaut and Host
Michelle Thaller
Self - Astronomer
Nina Lanza
Self - Planetary Scientist
Phil Plait
Jani Radebaugh
Dan Durda
Sean C. Soloman
Self - Messenger Principal Investigator
Erik Asphaug
