Perseverance keeps finding purple splotches on rocks in Jezero Crater.
The interesting thing about this is:
1. It hasn't been found anywhere else.
2. It resembles coatings called "varnishes" which are, on Earth, generated by microbes. The chemical constituency, though, is different. So far we've found that it contains certain iron oxides, magnesium, and hydrogen.
Could this be life on Mars? It's actually feasible, although we've had many false alarms. It's not just feasible for ancient, fossil life either (although scientists think that more likely). Perseverance is still studying it...but there's just that twinge of hope.
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