Timeline for What is meant by "vastness of space, which now filled a volume of a hundred million light years"?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Aug 12, 2020 at 14:30 | vote | accept | Jubbles | ||
| Aug 9, 2020 at 9:22 | comment | added | PM 2Ring | FWIW, en.wikipedia.org/wiki/… says that the 1st helium recombination happened around z=6000, and the 2nd around z=2000, but "The details of helium recombination are less critical than those of hydrogen recombination for the prediction of cosmic microwave background anisotropies, since the universe is still very optically thick after helium has recombined and before hydrogen has started its recombination." | |
| Aug 9, 2020 at 8:56 | history | edited | pela | CC BY-SA 4.0 |
plot of the timeline of recombination
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| Aug 8, 2020 at 22:15 | history | answered | pela | CC BY-SA 4.0 |