The cosmic microwave background, which is the light left over from when the universe was only 380,000 years old, can be used to calculate the expansion rate of the universe
factualpending
Speaker
Unidentified Speaker — "There's No Going Back from This" James Webb Telescope Unco… [UmYE87AOqL8]Evidence Quote
“when we calculate the rate of the expansion of the universe using the cosmic microwave background which is the light left over from when the universe was only 380,000 years old”
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"There's No Going Back from This" James Webb Telescope Uncovers One of the Oldest Galaxies Ever Seen— TerritoryCreated: 8/12/2026, 6:20:32 PM
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