Life on Mars: Scientists find evidence of water flowing on Mars, in pictures

Nasa’s Mars rover, Curiosity, has been exploring the Gale Crater on the planet since 2012 and found tantalising clues of possible life. In December it discovered 'burps' of methane, which Nasa scientists said could indicate “life or evidence of ancient methane trapped which could show ancient life”.
Here is a selection of images taken on the surface of the red planet
Above: These dark, narrow, 100 metre-long streaks called recurring slope lineae flowing downhill on Mars are inferred to have been formed by contemporary flowing water. Recently, planetary scientists detected hydrated salts on these slopes at Hale crater, corroborating their original hypothesis that the streaks are indeed formed by liquid water. The blue color seen upslope of the dark streaks are thought not to be related to their formation, but instead are from the presence of the mineral pyroxene.
Picture: Nasa/JPL/University of Arizona

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