Most thorough-ever study of the cosmos proves we still can't explain how the universe is expanding

Astronomers have conducted the most comprehensive study of the universe's expansion rate, combining decades of measurements into a framework called the Local Distance Network that achieved 1.09% precision. The research confirmed that "Hubble tension" persists, where measurements of the early versus local universe yield different expansion rates that cannot be explained by statistical errors. This analysis suggests our current understanding of cosmology is incomplete and points toward the need for new physics beyond the standard model.