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Joel Levine:
Why we need to go back to Mars

TEDxNASA · 16:14 · Filmed Nov 2009
Subtitles available in 24 languages
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Joel Levine: Why we need to go back to Mars
16:14 · Filmed November 2009 at TEDxNASA · Subtitles available in 24 languages

In this talk, planetary scientist Joel Levine shows some intriguing — and puzzling — new discoveries about Mars: craters full of ice, traces of ancient oceans, and compelling hints at the presence, sometime in the past, of life. He makes the case for going back to Mars to find out more. (Filmed at TEDxNASA.)

Planetary and atmospheric scientist
Joel Levine studies the atmospheres of Earth and Mars, looking at their origin, evolution, structure and chemistry and climate change. He's the principal investigator of the proposed ARES Mars Airplane Mission. Full bio
This talk was presented to a local audience at TEDxNASA, an independent event. TED editors featured it among our selections on the home page.

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