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

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

"This is saying, to some respect, that our model of cosmology might be broken." There are two gold-standard methods for working out the Hubble constant — the value that quantifies the speed of ...

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

Measurements of the distance to the Coma Cluster of galaxies find that it is millions of light years closer than the standard ...

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

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

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