🚨: James Webb confirms there's something seriously wrong with our understanding of the universe — and reveals unknown physics exists.

A groundbreaking study in the Astrophysical Journal Letters, led by Adam Riess, used JWST and HST to analyze over 1,000 Cepheid stars. It confirms the Hubble Tension isn't due to measurement errors (at 8.2σ confidence)—the universe's expansion rate measures ~73 km/s/Mpc in the late universe vs. ~67 km/s/Mpc from early universe data. This real discrepancy hints at new physics, like evolving dark energy or tweaks to general relativity, challenging our standard cosmic model. source: Riess, A.G. et al. (2024). “A Precision Hubble Constant Measurement from the Hubble Space Telescope and the James Webb Space Telescope.” Astrophysical Journal Letters.