Ideas change everything

Why Earth may someday look like Mars

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Anjali Tripathi |

TEDxBeaconStreet

• November 2015

Every minute, 400 pounds of hydrogen and almost 7 pounds of helium escape from Earth's atmosphere into outer space. Astrophysicist Anjali Tripathi studies the phenomenon of atmospheric escape, and in this fascinating and accessible talk, she considers how this process might one day (a few billion years from now) turn our blue planet red.

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Want to use TED Talks in your organization?

Every minute, 400 pounds of hydrogen and almost 7 pounds of helium escape from Earth's atmosphere into outer space. Astrophysicist Anjali Tripathi studies the phenomenon of atmospheric escape, and in this fascinating and accessible talk, she considers how this process might one day (a few billion years from now) turn our blue planet red.

Want to use TED Talks in your organization?

This talk was presented to a local audience at TEDxBeaconStreet, an independent event. TED's editors chose to feature it for you.

Read more about TEDx.

Discover new planets with Planet Hunters!

Learn why atmospheric escape matters for Earth’s helium — and how avoiding helium balloons can help.

About the speaker

Anjali Tripathi

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Anjali Tripathi explores planets to uncover the processes that make and destroy them.

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This talk was presented to a local audience at TEDxBeaconStreet, an independent event. TED's editors chose to feature it for you.

Read more about TEDx.

Discover new planets with Planet Hunters!

Learn why atmospheric escape matters for Earth’s helium — and how avoiding helium balloons can help.

Anjali Tripathi: Why Earth may someday look like Mars | TED Talk