Hakeem Oluseyi

饰：Self - Astrophysicist

Caleb Scharf

饰：Self - Astronomer

帕克·索耶

Parker Sawyers

饰：Narrator

Daniel Boyd

Daniel Boyd

饰：Albert Einstein

Andrew Ingersoll

饰：Self - Prof, Caltech, Cassini Imaging Team

John Rennie

饰：Self - Science Journalist

Carlos Frenk

饰：Self - Durham University

Edward Stone

Edward Stone

饰：Self - Voyager Chief Scientist (1998)

Alice Bowman

饰：Self - Mission Operations Manager (MOM) New Horizon

Marc Millis

饰：Self - Former Manager, NASA Breakthrough Propulsion Physics Project

Lynn Rothschild

饰：Self - Professor, NASA Ames Research Center

Don Kessler

Don Kessler

饰：Self - Former NASA Senior Scientist

Marek Kukula

饰：Self - Phd, Royal Observatory Greenwich

Terianne Shetler

饰：Scientist

Natasha Pavlovich

Natasha Pavlovich

饰：Self - Space Tourist

Andrew Shire

Andrew Shire

饰：Robert Taylor

Clifford V. Johnson

饰：Self - Theoretical Physicist

Peter Diamandis

Peter Diamandis

饰：Chairman, X-Prize

Konstantin Batygin

饰：Self - Planetary Astrophysicist

Anu Ojha

饰：Self - National Science Center

比雅尼·特里格瓦森

Bjarni Tryggvason

饰：Self - Astronaut, Canada

Kevin H. Baines

饰：Self - PhD, University of Wisconsin - Madison

Marc D. Rayman

饰：Self - Dawn Mission Director

Francisco Diego

饰：Self - University College London

Steve Vogt

饰：Self - Astronomer

Paul Steinhardt

饰：Self - Theoretical Cosmologist

Rick Tumlinson

饰：Self - Founder, Space Frontier Foundation

Nathalie Cabrol

饰：Self - Director, Carl Sagan Center

Francois R. Bouchet

饰：Self - Planck Collaboration

Ashley Davies

饰：Caltech

Ronald Mallett

饰：Self - Prof, University of Connecticut

Geoffrey Notkin

饰：Self - President of Aerolites Meteorites Inc

Ray Arvidson

饰：Self - Professor of Earth and Planetary Sciences

Sheyna Gifford

饰：Self - Physician

Michelle Thaller

饰：Self - Astronomer

Phil Plait

饰：Self - Astronomer

布赖恩·格林

Brian Greene

饰：Self - Theoretical Physicist

Alex Filippenko

饰：Self - Astrophysicist

Seth Shostak

饰：Self - Astronomer

Michael J. Massimino

饰：Self - Astronaut

Saul Perlmutter

饰：Self - Prof, Lawrence Berkley National Laboratory

Vera C. Rubin

饰：Self - PhD, Carnegie Institution of Washington

Jill Tarter

饰：Self - Bernard M Oliver Chair for SETI

Michael Simon Hall

Michael Simon Hall

饰：Scientist Chris McKay

Adam Steltzner

饰：Self - Phd, Jet Propulsion Laboratory

Gary Flandro

饰：Self - Spacecraft Engineer

Michael Minovitch

饰：Self - Mathematician

Kathryn Thornton

饰：Self - Astronaut

Ronald Garan

饰：Self - Astronaut

John Casani

饰：Self - Voyager Systems Engineer

方凯文

Kevin Fong

饰：Self - Professor, Kent, Surrey, Sussex Air Ambulance

Linda Hyder

Linda Hyder

饰：Self - Voyager Navigation Engineer (1998)

Charles Pellerin

饰：Self - Phd, NASA, Director of Astrophysics

理查德·布兰森

Richard Branson

饰：Self - Founder, Virgin Galactic

Anousheh Ansari

饰：Self - First Female Private Space Explorer

Nigel Bannister

饰：Self - PhD, Dept of Physics & Astronomy, University of Leicester

阿兰·古斯

Alan Guth

饰：Self - Theoretical Cosmologist

Rosaly Lopes

饰：Caltech

Tom Kerss

饰：Self - Royal Observatory Greenwich

Linda Spilker

饰：Caltech

Tracy Gregg

饰：Self - Phd, University of Buffalo

Clem Pryke

饰：Self - Bicep & Keck Array Experiments

Andrei Linde

饰：Self - Theoretical Cosmologist

Scott Sandford

饰：Self - NASA Ames Research Labratory

John M. Kovac

饰：Self - Bicep & Keck Array Experiments

Frank Drake

饰：Self - Phd, University of California - Santa Cruz

Chao-Lin Kuo

饰：Self - Bicep & Keck Array Experiments

Jamie Bock

饰：Self - Bicep & Keck Array Experiments

Andrew Rader

饰：Self - Mission Integrator, Space-X

Dr. Athena Coustenis

Dr. Athena Coustenis

饰：Self - Phd,Observatoire de Paris

Pascal Lee

饰：Self - Planetary Scientist

Robert Zubrin

饰：Self - President of the Mars Society

Cathy Olkin

饰：Self - Astrophysicist

Ralph Lorenz

饰：Self - Planetary Scientist

Sylvester James Gates Jr.

Angelle Tanner

饰：Self - Astronomer

巴拉克·奥巴马

Barack Obama

Craig Hogan

饰：Self - Physicist

Terry Virts

饰：Self - Former NASA Astronaut