Latest Photo Galleries:

• Images: How to make your car run on tequila (sort of)
• Images: A visit to 'negawatt' central
• Images: Riding the kiteboarding wave
• Photos: HTC's Touch Diamond phone
• Photos: Cracking open the Nintendo Wii Remote
• Photos: Maker Faire unboxed
• Photos: Top 10 reviews of the week
• Photos: The Victorian engine that could
• Images: Saturn's beauty and the beast
• Photos: The making of Maker Faire

More galleries »

Related Topics

• Aerospace

NASA's Mars Odyssey orbiter has found evidence of salt deposits in more than 200 places in the southern hemisphere of Mars. Scientists believe that the large number of salt deposits are the leftovers of an ocean that has long-since evaporated.

Oceans point to the possible existence of life, and salt is good at preserving organic material--at least on Earth.

The bright spots on images B and C may indicate salt mineral deposits. The locations of images B and C are shown in image A.

Credit: NASA/JPL-Caltech/University of Arizona/Arizona State University/University of Hawaii

More Galleries

• Images: 100 miles per gallon or bust!
• Photos: When good airplanes go bad
• Photos: Flying car readies for takeoff in New York
• Images: 'Grand Theft Auto IV' hits the streets
• Images: Saturn's beauty and the beast