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Life on Mars? Rover Rock Tests Raise the Possibility

NASA scientists say tests on a Mars rock show the planet could have supported primitive life.

NASA's Curiosity Rover Captures Mars
A view of Mount Sharp is seen in the distance taken by NASA’s Curiosity rover front hazcam. (Photo by NASA/JPL-Caltech via Getty Images)

The analysis was done by the rover Curiosity, which drilled into the rock, crushed it and tested a tiny sample.

The rover was the first spacecraft sent to Mars that could collect a sample from deep inside a rock.

At a briefing at NASA’s Washington headquarters on Tuesday, NASA scientist said the rock contains clay minerals that formed in a watery environment — an environment that may be favorable for microscopic organisms.

Curiosity had already found a hint of the site’s watery past — an ancient streambed that the six-wheel rover crossed to get to the flat bedrock.

The rover made a dramatic landing near the Mars equator last August for a two-year mission.

Read more science stories

Copyright 2013 The Associated Press.

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