Has Perseverance found a biosignature on Mars?
Text settings Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only Learn more Minimize to nav Last year, we reported on the discovery of an intriguing arrow-shaped rock on Mars by NASA’s Perseverance rover. The rock contained chemical signatures and structures that could have been formed by ancient microbial life. Granted, this was not slam-dunk evidence of past life on Mars, and the results were preliminary, awaiting peer review. But it was an intriguing possibility nonetheless. Now further analysis and peer review are complete, and there is a new paper, published in the journal Nature, reporting on the findings. It’s still not definitive proof that there was water-based life on Mars…
