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Off to the Traces

25 Oct 2010, 07:00 UTC
Off to the Traces
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If a tree feel on another planet, would we be able to detect it? Not quite yet – but we might be able to tell if the planet was habitable. A living-planet is the promise of newly-discovered Gliese 581g. But does the planet exist at all?
Discover how we learn a planet’s geology and chemistry from afar. Also, what we learn about a civilization from what it discards, beginning with our own sloppy habits.
Plus, the hunt for derelict alien spaceships… and a man who sketches alien creatures for a living – based on real science.

Lisa Kaltenegger – Astronomer, Harvard-Smithsonian Center for Astrophysics
Brad Bebout – Biologist, NASA Ames Research Center
Robin Nagle – Anthropologist, New York University
Robin Hanson – Economist, George Mason University
Joel Hagen – Computer graphics instructor, Modesto Junior College

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