Posted: Jul 08, 2018 6:58 pm
That microbes which have evolved on earth over billions of years to the point that they can survive extreme temps
Jamest you make an assumption that extremophiles evolved on earth ...that is yet to be completely determined...there is a good hypothesis that earth life could be seeded by interstellar panspermia
https://www.smithsonianmag.com/science- ... e-3884354/
Search on panspermia for more detail