Phoenix Scrapes to Icy Soil in Wonderland (7/1/2008)
NASA's Phoenix Mars Lander scraped to icy soil in the "Wonderland" area on Thursday, confirming that surface soil, subsurface soil and icy soil can be sampled at a single trench.
Phoenix scientists are now assured they have a complete soil-layer profile in Wonderland's "Snow White" extended trench.
By rasping to icy soil, Phoenix's robotic arm proved it could flatten the layer where soil meets ice, exposing the icy flat surface below the soil. Scientists can now proceed with plans to scoop and scrape samples into Phoenix's various analytical instruments. Scientists will test samples to determine if some ice in the soil may have been liquid in the past during warmer climate cycles.
It's another encouraging step to meeting Phoenix mission goals, which are to study the history of Martian water in all its phases and determine if the Martian arctic soil could support life.
Note: This story has been adapted from a news release issued by the University of Arizona
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