Recent Water Flow on Martian Surface?

These gullies on the Martian surface may have been created by recent water flow.
Image: NASA

Nasa says gullies on the Martian surface may have been created by water flow within the last few years. The images, taken by Nasa's Mars Global Surveyor, support the claims of many that Mars possibly hosts life. Gullies first photographed in 1999 and 2001 appear to have altered in 2004 and 2005 images, hinting at either water or liquid carbon dioxide movement. This information, coupled with data from the Mars rovers, suggests an active Martian geologic history, a history that may have included life. The findings were published in Science.

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