pdonchev

Are you sure that on Earth there is no place (again a cave, probably) with an even better permanent temperature, like 20 C?

Speaking of mud on Earth, I imagine abrasive dust in Moon caves might be an issue, especially if some boring happens. Is moon base personnel doomed to wearing a mask even in a pressurized cave and does it make sense to pressurize one at all.

I saw that this is addressed.