Living microbes play a role in forming rock varnish on Earth. Could they play a role in Martian rock varnish, too?
Mars Technica is produced by Los Alamos National Laboratory. Cover art by Joey Montoya. Images courtesy NASA/JPL and NASA/JPL/Caltech. With special thanks to Laura Mullane, Scott Faulk, Charles Poling, Arthur Bishop and Camille Dickson.
LA-UR-20-26905