Erik Thompson

饰：Narrator

Eric Thompson

饰：Narrator

加来道雄

Michio Kaku

饰：Himself

奈尔·德葛拉司·泰森

Neil Tyson

饰：Himself

尼尔·德格拉塞·泰森

Neil deGrasse Tyson

饰：自己

劳伦斯·M.克劳斯

Lawrence M. Krauss

饰：自己

Michelle Thaller

饰：Self - Caltech

Lucianne Walkowicz

饰：Self - Princeton University

Adam Showman

饰：Self - University of Arizona

Dan Durda

饰：Self - Southwest Research Institute

麦克斯·泰格马克

Max Tegmark

饰：Self - Assoc Prof Physics, MIT

Donald Brownlee

饰：Self - Univ of Washington

迈克尔·卡塞特

Michael Cassutt

饰：Self - Author, 'Who's Who in Space'

Kevin H. Baines

饰：Self - NASA

Pascal Lee

饰：Self - Mars Institute

Russell Schweickart

饰：Self - B612 Foundation

Mark Boslough

Mark Boslough

饰：Self - Physicist, Sandia National Laboratories

Peter Ward

Peter Ward

饰：Self - Univ of Washington

Roger Launius

饰：Self - Space Historian

Marcelo Gleiser

饰：Self - Physicist, Dartmouth College

David Ackroyd

饰：Self - Narrator

Holly Gilbert

饰：Self - Rice University

H. Jay Melosh

饰：Self - Planetary scientist, Univ of Arizona

Mark Lehner

饰：Self - Director, Ancient Egypt Research Associates

布赖恩·格林

Brian Greene

饰：Self - Prof Math & Physics, Columbia University

金·斯坦利·罗宾逊

Kim Stanley Robinson

饰：Self - Author, 'Sixty Days and Counting'

安德烈·博曼尼斯

André Bormanis

饰：Self - 'Star Trek' Writer and Science Advisor

Glenn Schneider

饰：Self - University of Arizona

格雷戈里·本福德

Gregory Benford

饰：Self - Physicist and Author, Univ of California, Irvine

Steve Squyres

饰：Self - Mars Expedition Rover Mission

Geoffrey Landis

饰：Self - Physicist, NASA Glenn Research Center

万娜·邦塔

Vanna Bonta

饰：Self - Author, 'Flight'

Stefan Immler

饰：Self - Astrophysicist, NASA Goddard Space Flight Center

John Kappenman

饰：Self - Grid Expert, Storm Analysis Consultants

Nima Arkani-Hamed

饰：Self - Prof Physics, Harvard University

Robert G. Strom

饰：Self - University of Arizona

Owen Garriott

Owen Garriott

饰：Self - Astronaut, Ret, Skylab & Spacelab

Rosaly Lopes

饰：Self - JPL

Ronald Mallett

饰：Self - Physicist, Author, 'Time Traveler', Univ of Connecticut

J. Craig Wheeler

饰：Self - Astrophysicist, Univ of Texas, Austin

Paul Knappenberger

饰：Self - Adler Planetarium

Martin K.A. Morgan

Martin K.A. Morgan

饰：Self - Historian

Clive Ruggles

饰：Self - Archaeoastronomer, Univ of Leicester

Bill Gallus

饰：Self - Iowa State University

Lisa Kaltenegger

饰：Self - Harvard-Smithsonian Center for Astrophysics

Todd Barber

饰：Self - NASA-JPL

Waleed Abdalati

饰：Goddard Space Flight Center

Eliezer Yudkowsky

饰：Self - Singularity Institute

Mickey Hart

饰：Self - Grateful Dead & Global Drum Project

Marc Millis

饰：Self - Propulsion Physicist, Tau Zero Foundation

Margaret Tolbert

饰：Self - University of Colorado

Nick Baggerly

饰：Self - Drive Around the World

Wolfhard Schlosser

饰：Self - Prof Astronomy, Bochum University

Dava Newman

饰：Self - MIT

Caitlin Griffith

饰：Herself - Univ of Arizona

John Polkinghorne

John Polkinghorne

饰：Self - Physicist and Anglican Priest

马丁·里斯

Martin Rees

饰：Self - Astronomer Royal, Cambridge University

Ryan C. Johnson

饰：Special Effects artist

Alex Filippenko

饰：Himself - Univ of California, Berkeley

Clifford V. Johnson

饰：Himself - Univ of Southern California

Amy Mainzer

饰：Herself - NASA

Travis S. Taylor

饰：Self - Physicist

Kevin R. Grazier

饰：Self - Planetary Scientist

Bruce Betts

饰：Self - The Planetary Society

Seth Shostak

饰：Self - SETI Institute

William Hartmann

饰：Self - Planetary Science Center

Geoff Marcy

饰：Self - Astrobioloist, Univ of California Berkeley

Kenneth Nealson

Kenneth Nealson

饰：Self - Univ of Southern California

Ed Krupp

饰：Himself - Director, Griiffith Observatory

Jonathan Markley

Jonathan Markley

饰：Self

Richard Muller

Richard Muller

饰：Self - Astrophysicist, Author, 'Physics For Future Presidents'

Jay Pasachoff

饰：Self - Williams College

Robert Zubrin

饰：Self - President, The Mars Society

Everett Gibson

饰：Johnson Space Center

大卫·布林

David Brin

饰：Self - Author, 'Startide Rising'

Edward Stone

Edward Stone

饰：JPL

Jerry Linenger

饰：Self - Author, 'Off the Planet'

阿兰·古斯

Alan Guth

饰：Self - Prof Physics, MIT

Andrew Ingersoll

饰：Self - CalTech

Ken Tankersley

饰：Self - Archaeologist, Univ of Cincinnati

Maxie Santillan Jr.

饰：Shaman

Victoria Meadows

饰：Self - Univ of Washington

Matthew Golombek

饰：JPL

Alan Boss

饰：Self - Astrophysicist, Carnegie Institution

Robert R. Cargill

Robert R. Cargill

饰：Self - University of Iowa

Lynn Rothschild

饰：Self - NASA Ames Research Center

Abigail Allwood

饰：Jet Propulsion Laboratory

克里斯托弗·吉尔曼

Christopher Gilman

饰：Self - Global Effects, Inc

Claudia Alexander

饰：Jet Propulsion Laboratory

John Fillwalk

饰：Self - Director, IDIA Lab, Ball State Univ

Robin Canup

饰：Self - University of Colorado

Brooks Peck

Brooks Peck

饰：Self - Science Fiction Museum & Hall of Fame

Raymond Kurzweil

饰：Self - Author, 'The Singulrity is Near'

Gary Lofgren

饰：Johnson Space Center

Travis Huxman

饰：Self - Biosphere 2

Scott J. Horowitz

饰：CEO Doc's Aerospace

Grant Stokes

饰：Self - MIT Lincoln Observatory

Tom D. Jones

饰：Self - Author, 'Sky Walking'

Jack Lissauer

饰：Self - NASA Ames Research Center

John Brandenberg

饰：Self - Physicist, Orbital Technologies

Tim Spahr

饰：Self - Minor Planet Center

Charles Beichman

饰：Self - NASA Exoplanet Science Institute

Robert Mullins

饰：Himself - Archaeologist, Azusa Pacific University

Laird Close

饰：Self - Astronomer, University of Arizona

Sheryl Bishop

饰：Self - Univ of Texas, Medical Branch

Sterling Greene

Sterling Greene

饰：Early Man

Will Whitehorn

饰：Self - Virgin Galactic

Owen Gingerich

饰：Self - Harvard-Smithsonian Center of Astrophysics

Gerald Brodin

Gerald Brodin

饰：Nicholas Copernicus

Jonathan Kelley

饰：Pope Urban VIII

James Casey

James Casey

饰：Isaac Newton

Glen McDougal

Glen McDougal

饰：Carnival Barker

Maya Harvey

Maya Harvey

饰：Extra - Girl at Carnival

Caroline Fraissinet

饰：Lot's Wife