Ideas worth spreading

There might just be life on Mars

723,273 views | Penelope Boston • TED2006

So the Mars Rovers didn't scoop up any alien lifeforms. Scientist Penelope Boston thinks there's a good chance -- a 25 to 50 percent chance, in fact -- that life might exist on Mars, deep inside the planet's caves. She details how we should look and why.

So the Mars Rovers didn't scoop up any alien lifeforms. Scientist Penelope Boston thinks there's a good chance -- a 25 to 50 percent chance, in fact -- that life might exist on Mars, deep inside the planet's caves. She details how we should look and why.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

About the speaker

Penelope Boston

Penelope Boston

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Penelope Boston studies caves and karst formations, and the special biology that lives in them -- both here on Earth and possibly on other planets.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.