Caption: To Earth and Back, Credit: Seth Shostak
Image by: Seth Shostak 
To Earth and Back 

To Earth and Back

From: Big Picture Science
Series: Big Picture Science
Length: 54:02

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Meet the NASA officer whose task is to keep Earth, Mars - and the entire solar system - free of hitchhiking bacteria. Read the full description.

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We are all Martians … or could be, if, billions of years ago, Red Plant microbes fell to Earth and eventually evolved to us. Okay, that one’s a big “if.” But microbes can survive space travel. Meet the NASA officer whose task is to keep Earth, Mars – and the entire solar system –safe from hitchhiking bacteria.

And, even if we’re not Martians (darn!), did life once thrive on the Red Planet … and does it still today?

Plus, why meteorites may be happy habitats for life.

Guests:

   Catharine Conley – NASA planetary protection officer

   Chris McKay – Planetary scientist, NASA Ames Research Center

   Paul Davies – Director of the BEYOND: Center for Fundamental Concepts in Science at Arizona State University

   Aaron Burton – Astrobiologist, NASA Goddard Spaceflight Center

   Debbie Kolyer – Grants Manager, SETI Institute

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Piece Description

We are all Martians … or could be, if, billions of years ago, Red Plant microbes fell to Earth and eventually evolved to us. Okay, that one’s a big “if.” But microbes can survive space travel. Meet the NASA officer whose task is to keep Earth, Mars – and the entire solar system –safe from hitchhiking bacteria.

And, even if we’re not Martians (darn!), did life once thrive on the Red Planet … and does it still today?

Plus, why meteorites may be happy habitats for life.

Guests:

   Catharine Conley – NASA planetary protection officer

   Chris McKay – Planetary scientist, NASA Ames Research Center

   Paul Davies – Director of the BEYOND: Center for Fundamental Concepts in Science at Arizona State University

   Aaron Burton – Astrobiologist, NASA Goddard Spaceflight Center

   Debbie Kolyer – Grants Manager, SETI Institute

Broadcast History

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Additional Files

Additional Credits

Seth Shostak – Host and Producer
Molly Bentley – Co-Host and Executive Producer
Gary Niederhoff – Producer
Barbara Vance – Production Assistant
Jay Weiler – Volunteer
Tanya Lewis - Intern

Related Website

http://radio.seti.org