الأسرار الغامضة: ألغاز الكون

William Shatner

Self - Host

Michio Kaku

Self - Author

Michio Kaku

Self - Theoretical Physicist

Rod Pyle

Self - Editor-in-chief: Ad Astra Magazine

Ben McGee

Self - Planetary Geophysicist

Graham Lau

Self - Research Investigator: Blue Marble Space

Paul Sutter

Self - Author, Your Place in the Universe

Paul Sutter

Self - Theoretical Cosmologist

Rebecca Boyle

Self - Author

Rebecca Boyle

Self - Science Writer

Pascal Lee

Self - Planetary Scientist, SETI Institute

Jason Wright

Self - Prof. of Astrophysics, Penn State

Jason Wright

Self - Prof. of Astronomy & Astrophysics, Penn State

Michael Dennin

Self - Physicist, UC Irvine

Michael Dennin

Self - Professor of Physics, UC Irvine

Edward Schwieterman

Self - Prof. of Astrobiology, UC Riverside

Kalpana Pot

Self

Anna Gülcher

Self - Planetary Scientist, NASA JPL

Anna Gülcher

Self - Cal-Tech

Amy Shira Teitel

Self - Author, Fighting for Space

Amy Shira Teitel

Self - Author, Breaking the Chains of Gravity

Veronica Bray

Self - Prof. of Planetary Science, Univ. of Arizona

Nick Pope

Self - UK Ministry of Defence: 1985-2006

Steven Trimble

Self - Defense Editor: Aviation Week Magazine

Jacob Haqq Misra

Self - Research Scientist: Blue Marble Space

Rob O'Brien

Writer

Geoffrey Sharp

Writer

Brian Leff

Writer

Andy DeJohn

Writer

Jeff Stepp

Writer

Doug Veith

Writer

Hal Cantor

Writer

Clinton Edmondson

Writer

Brian Garson

Writer

Chris Gattanella

Writer