NASA’s Mars rover Perseverance has found ancient nickel-rich sediments on the Red Planet which share chemical similarities with rocks formed by living microbes on Earth. The rocks were gathered in ...
Evidence is mounting that the same basic chemistry that made Earth habitable is unfolding, or once unfolded, on Mars. From complex organics to minerals linked with microbial activity, the Red Planet ...
Mars may already possess a built-in defense against contamination from Earth. Experiments using simulated Martian soil show that some compounds in the regolith can damage or inhibit microscopic ...