Submitted by _bidooflr_ t3_11isl13 in askscience
lGrayFoxl t1_jb1h2mn wrote
Reply to comment by Aseyhe in Does the age of the universe depends on where you are? by _bidooflr_
Is it possible to misinterpret a small detail that made us arrive at 13.7 billion years old that would make us be billion of years off or is it 13.7 give or take a few million for sure.
Aseyhe t1_jb1qtgd wrote
A billion years off is likely possible, given the Hubble tension. There's about a 7% difference between the present-day expansion rate favored by the CMB (~68 km/s/Mpc) and the present-day expansion rate favored by supernovae (~73 km/s/Mpc). 7% of 13.7 billion years is a billion years.
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