Mars meteorite similar to bacteria-etched earth rocks

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A microscopic view into a thin slice of the Martian meteor Nakhla. Credit: Oregon State University
A microscopic view into a thin slice of the Martian meteor Nakhla. Credit: Oregon State University

A new study of a meteorite that originated from Mars has revealed a series of microscopic tunnels that are similar in size, shape and distribution to tracks left on Earth rocks by feeding bacteria. And though researchers were unable to extract DNA from the Martian rocks, the finding nonetheless adds intrigue to the search for life beyond Earth.


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