VERY interesting!
I’ve always been quite curious and fascinated by the question of where all of the water on our planet came from. Water seems to be a very rare thing in our Solar System, and we have A LOT of it. I’m not sure I completely buy the ‘bombardment theory’ regarding comets, but that’s probably more of a case of me just not being able to comprehend it. lol
It had to come from somewhere else, so I guess comets are as good a source as any. Damn.... There had to be a whole lot of them though. How come there still aren’t comets hitting us to add to the water, if that’s the case? Is it a matter of there being more comets back then, and they’re no longer here in great numbers?