Re:Rosetta finds comet's water vapour to be significantly di...
by charonn0 on Wednesday December 10, 2014 @05:27PM
(#8732117)
> Why wouldn't water be one of the by products of the big-bang
There weren't any Oxygen atoms around until long after the big bang, and only a handful (in cosmic terms) of non-Hydrogen atoms.[1]
H2O molecules couldn't form until Oxygen had been synthesized, which occurs when a star exhausts its Hydrogen and begins fusing its Helium[2]. So water probably didn't exist until well into the the first or second generation of stars.
There weren't any Oxygen atoms around until long after the big bang, and only a handful (in cosmic terms) of non-Hydrogen atoms.[1]
H2O molecules couldn't form until Oxygen had been synthesized, which occurs when a star exhausts its Hydrogen and begins fusing its Helium[2]. So water probably didn't exist until well into the the first or second generation of stars.
[1]: https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis
[2]: https://en.wikipedia.org/wiki/Stellar_nucleosynthesis