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Astronomy magazine podcast: Water on Mars

Astronomy Senior Editor Rich Talcott analyzes images that may reveal water flow on the Red Planet.
Gully delopsit in Terra Sirenum
MGS imaged a new gully deposit in a martian crater in Terra Sirenum.
NASA/JPL/Malin Space Science Systems
December 14, 2006
Is there water flowing on the Red Planet? Mars Global Surveyor captured images that indicate recent water activity on the planet's surface. What does this discovery mean for the search for water — and life — on Mars?

In this week's show, Astronomy Senior Editor Rich Talcott explains why these photographs excite scientists.

After you listen, e-mail us here and let us know what you think.

If you would like to subscribe to our podcast, click here.
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