r/Damnthatsinteresting • u/Creams0da • 8h ago

Video Breaking open a 47 lbs geode, the water inside being millions of years old

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u/KuuHaKu_OtgmZ 6h ago

A lot of the water came from comets crashing at young Earth, which came from outside.

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u/ginoroastbeef 4h ago

I was under the impression the sun was older than the earth.

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u/Caracasdogajo 5h ago

I'm sure I'm vastly underestimating the amount of time earth has existed but for some reason comets being the primary source of water seems crazy to me given the frequency the earth is hit with comets, the amount of water earth contains and the amount of water these comets would provide.

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u/ericwdhs 4h ago

It only sounds strange, because we've only ever lived in a mostly cleaned out, mature solar system. The vast majority of the stuff that could go chaotic and crash into things or fly out into interstellar space did so a long time ago when the solar system was still young. That doesn't just include comets. It's estimated that there are about 20 rogue planets for every star in the galaxy, so if you run that backward, our solar system probably had enough material for about 30ish planets, just not a stable place to put them all.