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cross-posted from: https://feddit.uk/post/44126927

Goldilocks

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[-] wolframhydroxide@sh.itjust.works 6 points 15 hours ago

More weird to me is that, at some point before the first stars, the entire universe glowed through the entire rainbow, so there is a moment when, were you to travel back in time, the entire universe would glow blindingly green.

[-] SkyeStarfall@lemmy.blahaj.zone 7 points 13 hours ago

It probably would never appear green, due to the black-body radiation distribution. When the peak is at green, it just looks like white to us. Our sun is kinda a "green" star due to this

But it would go from blue to white to red. Similar colour progression that we can find in the distribution of stars

[-] wolframhydroxide@sh.itjust.works 3 points 10 hours ago* (last edited 10 hours ago)

Indeed! Good point! For some reason, I was under the impression that the CMB was monochromatic (corresponding to a red shifted equivalent of the precise energy of W and Z boson annihilation to produce photons). Thanks!!

this post was submitted on 12 Feb 2026
515 points (98.0% liked)

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