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Lots and lots of Helium too, and (it's believed) Lithium as well. That's it though, everything else is stardust or the interaction of stardust with cosmic rays
by M_Grey 10y ago
Lots and lots of Helium too, and (it's believed) Lithium as well. That's it though, everything else is stardust or the interaction of stardust with cosmic rays and the like.
- contravariant 10y agoAh according to Wikipedia it's believed to be around 25% helium-4, that's more than I thought it was. The rest is almost entirely hydrogen though.
- M_Grey 10y agoIt's amazing when you consider the abundance of heavier elements in our universe today, that virtually all of it was created in stars, isn't it?!
- AstralStorm 10y agoThere is no abundance. You simply happen to be living in a planet, by definition made out of heavier atoms. Even active stars are mostly hydrogen.
- M_Grey 10y agoConsidering that "in the beginning" was mostly hydrogen and helium, I'd say that the present state of affairs is an "abundance". Granted, nothing is in abundance other than spacetime though if you want to be picky about it through.