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Curiosity finds more evidence that water once flowed on Mars

Delila James | Science Recorder | September 25, 2013

Curiosity finds more evidence that water once flowed on Mars

More evidence of past water on the Red Planet.

NASA’s sturdy little Mars rover, Curiosity, has discovered more signs that liquid water was present in the ancient Martian environment. Using instruments on its robotic arm, Curiosity inspected rocks Thursday (Sept. 19) at one of five planned waypoints on its journey along Gale Crater toward the massive, almost three-and-a-half-mile high Mount Sharp.

“We examined pebbly sandstone deposited by water flowing over the surface, and veins or fractures in the rock,” said Curiosity science team member Dawn Sumner in a statement released by NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, Calif. “We know the veins are younger than the sandstone because they cut through it, but they appear to be filled with grains like the sandstone.” Sumner, of the University of California-Davis, had a leadership role in planning the scientific pitstop.

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