Curiosity rover captured the image of the lower portion of Mount Sharp on Mars. The rounded hills in the middle distance, are named the Sulfate Unit. Sulfates are an energy source for some micro-organisms. Credit:NASA, JPL-Caltech, MSSS. via /r/spaceporn http://bit.ly/2RfjO1b
via Tumblr http://bit.ly/2sJh4iq
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