
Narrator / Himself - Narrator
Mike Rowe

Narrator
Erik Dellums

Himself - Narrator
Richard Lintern

James S. Bullock
James S. Bullock

Herself - Phd., Astronomer, NASA Goddard Space Flight Center
Michelle Thaller

Himself - Professor, Theoretical Physicist, Arizona State Un
Lawrence Krauss

Himself
Michio Kaku

Himself - Astrophysicist
Hakeem Oluseyi

Himself - Phd., Astronomer
Phil Plait

Himself - Professor of Astronomy, Harward University
Edo Berger

Herself - Planetary Protection Engineer
Moogega Cooper

Himself - Phd., Astrophysicist
Dan Durda

Himself - Nuclear Scientist
Taylor Wilson

Stephen Hawking