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Did Mars harbour life? One of the strongest signs yet is spotted in a peculiar rock The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

Last year NASA issued a press release on an astrobiologically interesting rock found by Perseverance. I was on leave and didn't cover it.

Today the scientists talked at #LPSC2025.

No, it's almost certainly not life on #Mars. But it is pretty darn interesting. 🧪

www.nature.com/articles/d41...

Hi I am a planetary geoscientist who studies meteorites for what they tell us about the history of our Solar System and to establish best methods for curation and preservation of meteorites and returned samples. Please add me as a contributor.

orcid.org/0000-0001-52...

I will be at #LPSC2025 this week, presenting on the samples collected by #NASAPerseverance Monday afternoon and #meteorites from #Mars Thursday posters.

This link provides info on one part of my job: fielding inquiries from members of the public about #meteorites and classifying new meteorites,

www.ualberta.ca/en/science/m...