Research on clay formation could have implications for how to search for life on Mars

Branching tributaries with ancient valleys seen in a 120km wide region of Mars. GoogleEarth (ESA/DLR/FU Berlin)

Heat and steam from the magma ocean

Artist’s impression of very early Mars, with a steamy carbon dioxide-rich atmosphere above the surface of a cooling magma ocean. David A Rothery, Author provided

Not like Earth?

20km wide image showing the Jezero crater, a candidate landing site for NASA’s Mars 2020 mission. Areas of clay minerals appear green. NASA/JPL-Caltech/MSSS/JHU-APL

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