Comment by TeeDeeArt on 16/07/2022 at 06:52 UTC*

2 upvotes, 1 direct replies (showing 1)

View submission: AskScience AMA Series: We are Cosmologists, Experts on the Cosmic Microwave Background, The Cosmic Web, Dark Matter, Dark Energy and much more! Ask Us Anything!

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Thanks for all the answers :D

So the loss of energy of light to the expansion, does that weakening then itself cause more expansion/inflation? (or rather, did it, back when radiation was actually a significant contributor to the total energy density?)

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Comment by nivlark at 16/07/2022 at 20:13 UTC

1 upvotes, 1 direct replies

No, it's literally just lost. (This means that for the universe as a whole, energy is actually not conserved!)