Thursday, July 17, 2008


Mars: Wet All Over

Credit: NASA/JPL/JHUAPL/University of Arizona/Brown University.

This three-dimensional image of a trough in the Nili Fossae region of Mars shows a type of minerals called phyllosilicates (in magenta and blue hues) concentrated on the slopes of mesas and along canyon walls. The abundance of phyllosilicates shows that water played a sizable role in changing the minerals of a variety of terrains in the planet's early history.

Organic Cemetery

Credit: NASA/JPL/JHUAPL/MSSS/Brown University.

A color-enhanced image of the delta in Jezero Crater, which once held a lake. Ancient rivers ferried clay-like minerals (shown in green) into the lake, forming the delta. Clays tend to trap and preserve organic matter, making the delta a good place to look for signs of ancient life.

Mars is Hot Hot Hot and Wet!

Oh, come on! :-)

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