Lava tubes may be havens for ancient alien life and future human explorers
pnas.org
pnas.org
Interesting. I didn't know that we've spotted that many likely candidates on Mars.
So stop spinning ideas about how it may be in some fine layer between one dead zone and another. Such possibilities are interesting but not very inspirational. Let's break out the telescopes and start seriously looking for biosignatures in alien atmospheres. I don't care if an amoeba is found on Mars, resulting in a decades-long debate on where it came from. I want to find a jungle of life. I want a Degoba.
The possibility is very inspirational to me.
Really ought to get to work on a space elevator too, but that'll take long enough that we shouldn't delay other important projects.
I think the deep extremophiles underscore the point that "if there's life, it spreads everywhere". Which is in aggregate easy to spot.