Springtime has arrived at the Red Planet's Chasma Boreale, as this photo by NASA's Mars Reconnaissance Orbiter shows.
New images from the Mars Express spacecraft show ancient volcanic ash spreading across the Red Planet.
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Scientists found a 'bathtub ring' on Mars. Could it be evidence of an ancient Red Planet ocean?
A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the ...
Space.com on MSN
Curiosity rover finds building blocks of life on Mars. Scientists aren't sure how they got there
NASA's Curiosity rover has found a diverse mix of organic molecules on Mars, including chemicals considered building blocks ...
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