Here's a linked article which does a better job: https://hubblesite.org/contents/news-releases/2022/news-2022-005 >The expansion rate of the universe was predicted to be slower than what Hubble actually sees. By combining the Standard Cosmological Model of the Universe and measurements by the European Space Agency's Planck mission (which observed the relic cosmic microwave background from 13.8 billion years ago), astronomers predict a lower value for the Hubble constant: 67.5 plus or minus 0.5 kilometers per second per megaparsec, compared to the SHOES team's estimate of 73. The Planck mission supposedly calculates the Hubble constant from the cosmic microwave background radiation. To me that's all just hocus pocus. They calculate *something* and it just happens to be in the ballpark of what the Hubble telescope is observing. >Given the large Hubble sample size, there is only a one-in-a-million chance astronomers are wrong due to an unlucky draw, said Riess, a common threshold for taking a problem seriously in physics. The one-in-a-million chance of being wrong only applies if their model is correct to begin with.