You must log in or register to comment.
I wonder how soon the day will be that we discover evidence of oxygen on an exoplanet? It would be a very strong indicator of carbon-based life.
We’ve found oxygen, but hard to say it’s life
https://www.aanda.org/articles/aa/pdf/2013/05/aa21014-12.pdf
https://science.nasa.gov/universe/exoplanets/oxygen-on-exoplanets-isnt-proof-of-life/