Submitted by littleboymark t3_zy25il in askscience
Aseyhe t1_j28epg4 wrote
Reply to comment by littleboymark in How does light factor into gravity models? by littleboymark
It will become continuously dimmer and redder, eventually moving into radio frequencies. If dark energy persists, the CMB frequency will halve (wavelength will double) every ~12 billion years.
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