Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

Computer algorithms can model the universe, matching simulations to observations and revealing the distribution of dark ...

New measurements show that the expansion rate of the universe is faster than can be explained by our current understanding of ...

Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.