Article: Lander hints at water, nutrients on Red Planet: Phoenix continues to dig and analyze soil samples.(Atom & Cosmos)

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The first analyses of Martian soil scooped up last month by the robotic arm on NASA's Phoenix Mars Lander support the notion that liquid water has flowed on the Red Planet.

A cubic centimeter of Martian soil--about the volume of a sugar cube--delivered to one of the miniature laboratories on the lander revealed several water-soluble elements and inorganic compounds, including sodium, potassium chloride and magnesium, reported Samuel Kounaves of Tufts University in Medford, Mass. Kounaves leads the lander's wet-cell lab experiment, which adds water to samples in order to detect soluble substances.

"We have found what appears to be the ...

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