"The Standard Model Finally Breaks Down" JWST Shatters the Core of Cosmology, Revision Starts Soon. Over the years, we have tried several methods to measure the expansion rate of the universe.
One way is to calculate nearby observations of supernovae, and the second uses the cosmic microwave background, or radiation that flooded the Universe shortly after the Big Bang.
While observations of the cosmic microwave background radiation say the universe should be expanding today at a rate of about 67.8 kilometers per second per megaparsec, the other method says it should be expanding at 73.2 kilometers per second per megaparsec.
So the results from these two measurements differ by about 10 percent, and it has caused widespread debate among physicists and astronomers.
And if both measurements are correct, it suggests that the current scientific understanding of the universe's composition is incomplete. This is called the Crisis in Cosmology.
To solve the crisis scientists used the Hubble Telescope to measure the true rate of expansion of the universe. It, too, found that the universe is expanding at different rates in different parts. But all hell broke loose when recently scientists turned humanity’s most advanced telescope to find out about the mystery. By double-checking the Hubble Space Telescope's results, the James Webb Telescope’s observations not only complicated the paradox of Hubble Tension more, it also ruled out calculations errors.
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