"Resolving the Universe's Expansion Paradox: Webb and Hubble Find Common Ground"

The James Webb Space Telescope has confirmed the accuracy of the Hubble Space Telescope's measurements of the expansion rate of the universe, known as the Hubble constant, further intensifying the "Hubble tension" as it conflicts with other measurements. By observing Cepheid variables in distant galaxies, the JWST has ruled out potential measurement errors and interstellar dust as causes of the discrepancy, leaving cosmologists to consider the possibility of new physics to explain the paradox. The team's results were published in The Astrophysical Journal Letters.