December 14, 2006I
s 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