Curiosity Photos Reveal Possible Signs That Mars Had Life Long Ago

January 7, 2015 6:35 PM

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A rock bed at the Gillespie Lake outcrop on Mars displays potential signs of ancient microbial sedimentary structures. (Photo Credit: NASA)

Our planet's microbes leave behind traces of themselves in the form of sediments. Now, there's tantalizing evidence from the Curiosity rover that Martian microbes may have done much the same. The evidence is far from conclusive, but some scientists say the visual similarities are striking.

Also read: 7 things in your daily life that you didn't know were based on NASA innovations

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