Comment on Searching for signs of life on exoplanets is tough.
sbeak@sopuli.xyz 11 hours agoMany elements up to iron can be produced from supernovae, including oxygen. And I’m pretty sure a supernova isn’t a very habitable place…
Comment on Searching for signs of life on exoplanets is tough.
sbeak@sopuli.xyz 11 hours agoMany elements up to iron can be produced from supernovae, including oxygen. And I’m pretty sure a supernova isn’t a very habitable place…
Skyrmir@lemmy.world 10 hours ago
Just about every element comes out of a super nova. By the time it’s around a planet, Oxygen has made friends, usually Hydrogen, so it’s no longer free molecules.
sbeak@sopuli.xyz 9 hours ago
Oxygen can make friends with other oxygen, no? O2. It isn’t only produced by biotic means…
Also, not every element comes out of a supernova. Elements that are heavier than iron and nickel are created when a neutron stars merge! Very cool. Not to mention all the manmade elements…
Skyrmir@lemmy.world 9 hours ago
o2 isn’t as stable as most molecules containing oxygen. Free o2 oxidizes damn near everything, so it doesn’t last in an atmosphere without a new source. Take a look at the solar system. Every planet has oxygen, none of it is o2 outside of earth.