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Curiosity rover explores Mars

Updated September 28, 2012 at 1:22 AM

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Curiosity rover explores Mars

Mars Rover Curiosity Finds Martian 'Flower' and Snake-Like Rock

Mars rover finds first evidence of water - a river of it

Mars rover finds first evidence of water - a river of it

Mars rover finds first evidence of water - a river of it

Mars rover finds first evidence of water - a river of it

Mars rover finds first evidence of water - a river of it

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

Mars rover sends incredible photos

NASA's new Mars picture

NASA's new Mars picture

NASA's new Mars picture

NASA's new Mars picture

What are those weird spirals in Mars' surface?

What are those weird spirals in Mars' surface?

What are those weird spirals in Mars' surface?

<b>More photos from the surface of Mars</b><br>Scientists have found evidence of flowing salt water on steep Martian slopes, which if confirmed would be the first discovery of active liquid water on the red planet, NASA has said.

The data gathered by the Mars Reconnaissance Orbiter has given new focus to the hunt for life forms and scientists hope that in the coming years lab experiments and new space missions may shed more light on what they have seen.

The US space agency said the orbiter circling Mars since 2006 had monitored numerous instances of what appeared to be water flows occurring in several locations during the Martian spring and summer.

"The best explanation we have for these observations so far is flow of briny water, although this study does not prove that," said Alfred McEwen of the University of Arizona's Lunar and Planetary Laboratory.

No liquid water has been found on Mars, though ice has been discovered at the poles. All life forms need water to survive, so the existence of a water source could point to a haven for primitive life.

Frozen water has been detected in some of Mars's higher latitudes, and other evidence has suggested that water interacted with the Martian surface throughout the planet's history.

Carbonate-Containing Martian Rocks

True Gullies on Mars

Bright Layered Deposits with Clues of Acidic Water

Dune Symmetry Inside Martian Crater

Northern Hemisphere Gullies on West-Facing Crater Slope, Mars

Polygonal Ridge in Gordii Dorsum Region, Mars

Light-Toned Deposits in Noctis Labyrinthus

Branched Features on the Floor of Antoniadni Crater

Sand Dunes and Ripples in Proctor Crater, Mars

Nature's Drilling Exposes Deeply Buried Minerals

All the latest images from the Red Planet, beamed back by NASA's Mars rover, Curiosity.

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