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A Nasa rover has reached a promising place to search for fossilised life on Mars

By Sean McMahon, Chancellor's Fellow in Astrobiology, The University of Edinburgh

While we go about our daily lives on Earth, a nuclear-powered robot the size of a small car is trundling around Mars looking for fossils. Unlike its predecessor Curiosity, Nasa’s Perseverance rover is explicitly intended to “search for potential evidence of past life”, according to the official mission objectives.

Jezero Crater was chosen as the landing site largely because it contains the remnants…

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