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Mars rover finds hints of past life in latest rock samples

NASA's Perseverance Mars rover has detected its highest concentrations of organic molecules yet, indicating the presence of ancient microbes, which scientists hope to confirm when rock samples are returned to Earth. While the organic matter has previously been discovered on Mars, the new discovery is...

NASA experiment suggests need to dig deep for evidence of life on Mars

According to a new NASA laboratory experiment, rovers may need to dig 6.6 feet (two metres) or more beneath the Martian surface to find evidence of ancient life because ionising radiation from space degrades small molecules like amino acids relatively quickly. Life and non-biological chemistry...