5 ms·
I think it’s precisely because life created the oxygen atmosphere that it’s interesting as a potential sign of life, no?
by virgildotcodes 3y ago
I think it’s precisely because life created the oxygen atmosphere that it’s interesting as a potential sign of life, no?
- deleted 3y ago[deleted]
- kortex 3y agoOxygen is an indicator of life, but not a strong one, as there are many processes which could create an oxygen atmosphere. What is a strong indicator is the presence of both oxidizing (oxygen, ozone) and reducing (hydrogen, methane, dimethyl sulfide) molecules, in sufficient quantities. That suggests something driving the equilibrium away from all-oxidizing or all-reducing atmospheres.
- deleted 3y ago[deleted]