NASA discovers impact glass deposits on Mars; could provide clues to ancient life on Mars
These glass depositions might just provide an insight intoancient signs of lifeon the Red planet. Earlier astronomical studies have shown that it is possible to preserve ancientbio-signaturesin animpact glass. Before this paper, no one had been able to definitively detect them on the Martian surface. However, the impact glass is a bit different as it does not have any particular strong spectral signal. But Kevin found a way to tease that signal out....