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Mars Lander Finds Ice... or Salt

Scientist debate mysterious white substance

By Kevin Spak,  Newser Staff

Posted Jun 17, 2008 1:20 PM CDT
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(Newser) – The Phoenix Mars lander has found… well, something. While digging a pair of trenches on the Red Planet’s North Pole, the little robot sent back images of soil streaked with something white. Now scientists are wondering whether it’s the ice they’d hoped for, a salt deposit, or something else. If it’s ice, scientists expect it to transform from liquid to gas when the sun touches it.

“We think it’s ice,” said one scientist.  “But again, until we can see it disappear…we’re not guaranteed yet.” Even a salt deposit would be significant, however, because salt typically forms when water evaporates in the soil.

This image acquired by NASA's Phoenix Mars Lander's Surface Stereo Imager on Friday, June 13, 2008, shows stripes of mysterious white material mixed in with the clumpy, reddish dirt of mars.
This image acquired by NASA's Phoenix Mars Lander's Surface Stereo Imager on Friday, June 13, 2008, shows stripes of mysterious white material mixed in with the clumpy, reddish dirt of mars.   (AP Photo)
This image acquired by NASA's Phoenix Mars Lander's Robotic Arm camera shows material from the Martian surface captured by the robotic arm scoop on Tuesday June 3, 2008.
This image acquired by NASA's Phoenix Mars Lander's Robotic Arm camera shows material from the Martian surface captured by the robotic arm scoop on Tuesday June 3, 2008.   (AP Photo)
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Twitters from Mars!
Washington Post

No sign of water yet
Los Angeles Times

 
NASA • Phoenix Mars Lander • ice • salt

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