The Universe (2007–2015)

Erik Thompson

Self - Univ. of California, Berkeley / ... 53 episodes, 2007-2015

Laura Danly

Self - Univ. of Southern California / ... 26 episodes, 2007-2015

Michio Kaku

Self - Author, 'Physics of the Impossible' / ... 19 episodes, 2007-2009

Amy Mainzer

JPL / ... 16 episodes, 2008-2012

Greg Laughlin

Self - American Museum of Natural History / ... 12 episodes, 2007-2008

Michael Mischna

Self - Caltech / ... 10 episodes, 2007-2009

Travis Taylor

Self - Physicist / ... 6 episodes, 2009-2010

Chris McKay

Self - NASA / ... 5 episodes, 2007-2010

Sean Carroll

Self - Caltech / ... 5 episodes, 2008-2012

Adam Frank

Self - Astronomer, Univ. of Rochester / ... 5 episodes, 2008-2014

Bruce Betts

Self - SETI Institute / ... 4 episodes, 2007-2011

Adam Showman

Self - Southwest Research Institute / ... 4 episodes, 2009-2014

Geoff Marcy

Self - Brown University / ... 3 episodes, 2007-2012

Kenneth Nealson

Self - Assoc. Prof. Physics, MIT / ... 3 episodes, 2007-2012

Jonathan Markley

Self - Astrophysicist, Univ. of Arizona / ... 2 episodes, 2007-2009

Richard Ellis

Self - Astronomer, Cal Tech / ... 2 episodes, 2007-2008

Craig DeForest

Self - Williams College 2 episodes, 2007

Mark Morris

Self - Astronomer, University of Redlands 2 episodes, 2014

Everett Gibson

Self - Mars Institute / ... 2 episodes, 2008-2011

Steven R. Chesley

JPL / ... 2 episodes, 2007-2012

Russell Schweickart

Self - Author, 'Off the Planet' 2 episodes, 2008

Peter Ward

Self - Univ. of Washington 2 episodes, 2009-2011

Don Figer

Self - Narrator 1 episode, 2007

Erik Thomson

Self - JPL 1 episode, 2007

Jay Melosh

Author, 'The Mind of God' / ... 1 episode, 2011

William Alschuler

Self - Historian of Religion, Chapman University 1 episode, 2014

Brian Greene

Self - Prof. Math & Physics, Columbia University 1 episode, 2007

Henry Throop

Self - 'Star Trek' Writer and Science Advisor 1 episode, 2009

Pat Slane

Self - University of Iowa 1 episode, 2011

John Mosley

Self - Southwest Research Institute 1 episode, 2007

Steve Squyres

Self - Mars Expedition Rover Mission 1 episode, 2007

Brian Cameron

Self - Author, 'Flight' 1 episode, 2008

Lynn Rothschild

Self - Global Effects, Inc 1 episode, 2009

Peter Tuthill

Self - Astronaut, Ret., Skylab & Spacelab 1 episode, 2008

John S. Lewis

Self - JPL 1 episode, 2007

Carolyn Porco

Self - Univ. of California, Los Angeles 1 episode, 2007

Robin Canup

Self - Physicist, Author, 'Time Traveler', Univ. of Connecticut 1 episode, 2008

Robert Quimby

Self - Author 'Heavenly Knowledge' 1 episode, 2009

Eric Anderson

Self - Author, 'The Singulrity is Near' 1 episode, 2007

Debra Fischer

Jet Propulsion Laboratory / ... 1 episode, 2008

Bruce Waddington

Self - M.I.T. Lincoln Observatory 1 episode, 2009

William J. Borucki

Self - Magis Center of Reason and Faith 1 episode, 2011

Martin K.A. Morgan

Self - Historian 1 episode, 2012

John F. Wilson

Self - Religious Historian, Pepperdine University 1 episode, 2014

Clive Ruggles

Self - Author, 'Hiding in the Mirror' 1 episode, 2007

Margaret Kivelson

Self - Physicist, Orbital Technologies 1 episode, 2008

Andy Albrecht

Self - Univ. Of California, Davis 1 episode, 2008

April E. Ronca

Self - Harvard-Smithsonian Center for Astrophysics 1 episode, 2009

Dan Evans

Self - NASA Ames Research Center 1 episode, 2009

Peter Teuben

Self - Archaeologist, Azusa Pacific University 1 episode, 2014

Glen Dash

Self - Grateful Dead & Global Drum Project 1 episode, 2009

Avi Loeb

Self - Harvard University 1 episode, 2009

John Beck

Self - Bigelow Aerospace 1 episode, 2009

Frank McDonough

Nicholas Copernicus 1 episode, 2007

Jenny Kim

Galileo Galilei 1 episode, 2007

Jonathan Kelley

Pope Urban VIII 1 episode, 2007

John Polkinghorne

Self - Physicist and Anglican Priest 1 episode, 2007

James Casey

Isaac Newton 1 episode, 2007

Martin Rees

Carnival Barker 1 episode, 2007

David Leeming

Extra 1 episode, 2007

Eugene Loza Jr.

Self - Special effects artist 1 episode, 2011