However an anoxic atmosphere, would allow more UV to reach the surface, making surface environments hostile to even highly UV-tolerant terrestrial extremophiles, if future observations detect ozone it would be a prime candidate to search for surface life.
However an anoxic atmosphere, would allow more UV to reach the surface, making surface environments hostile to even highly UV-tolerant terrestrial extremophiles. Future observations detect ozone. It would be a prime candidate to search for surface life ozone.