mars life – Astronomy Now

17 May 2021

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Methane detected on Mars; origin not yet known

24 June 2019 Astronomy Now

NASA’s Curiosity Mars rover detects methane; while a possible indicator of biological activity, the source is not yet known.

Curiosity rover finds more evidence of Martian habitability

8 June 2018 Astronomy Now

NASA’s Curiosity Mars rover has detected a wide range of organic compounds on the red planet along with signs of seasonal variations in background methane levels, a possible indicator of biological activity.