How the Universe Works

Mike Rowe Narrator

Michelle Thaller Self - Astronomer

Phil Plait Self - Astronomer

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Nina Lanza

Hakeem Muata Oluseyi Self - Astrophysicist

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Moogega Cooper Self - Planetary Protection Engineer

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Jani Radebaugh

Dan Durda

Kevin J. Walsh

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Paul M Sutter

Erik Dellums Himself - Narrator

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Chris Mckay Self - Astrobiologist