Saturday, October 23, 2010

Are We Alone for 10/25/10 - Off to the Traces

Image for Are We Alone weekly radio show
Are We Alone - Off to the Traces

If a tree fell 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.


You can listen to this and other episodes at, and be sure to check out Are We A Blog?, the companion blog to the radio show.

And be sure to check out the Are We Alone iPhone/iPad app:

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