The conditions for deep biosphere life exist throughout the universe. While surface life is apparently very rare, most planetary bodies with a hot core and subsurface moisture should have some layer conducive to this sort of life.
Since we don’t fully how life arises from non-life, it’s speculation as to whether life really is uncommon or not. But deep biosphere life should easily be the most common form in the universe. Estimates for it on Earth put it at about 90% of our biomass of archaea and bacteria.
Life has been found deep in the Earth’s crust. Think about that in this context.
https://en.m.wikipedia.org/wiki/Deep_biosphere
The conditions for deep biosphere life exist throughout the universe. While surface life is apparently very rare, most planetary bodies with a hot core and subsurface moisture should have some layer conducive to this sort of life.
Since we don’t fully how life arises from non-life, it’s speculation as to whether life really is uncommon or not. But deep biosphere life should easily be the most common form in the universe. Estimates for it on Earth put it at about 90% of our biomass of archaea and bacteria.