JWST Spots Giant Black Holes All Over the Early Universe | Quanta Magazine
A_A @ A_A @lemmy.ca Posts 0Comments 30Joined 2 yr. ago

A_A @ A_A @lemmy.ca
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Maui Fire Before And After
Cosmic microwave background (CMB) is very smooth ; if there was black holes in there I guess we would see (huge) unevenness.
Hummm, or at least, that stupid LCDM would lead to such an expectation. ... that model also put CMB at :
400 000 to 500 000 years after the BBang.
and most distant visible galaxies (and black holes) at :
330 000 000 years after BB.
if we go by this number we have a few hundred million years to produce such big things out of something very smooth.
if we used a different model we could have much more time.