Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New findings risk turning the tension into a crisis, scientists say.

What if time is not as fixed as we thought? Imagine that instead of flowing in one direction -- from past to future -- time could flow forward or backward due to processes taking place at the quantum ...

A unique dataset of Type Ia supernovae being released today could change how cosmologists measure the expansion history of ...

A new study published in the Journal of Cosmology and Astroparticle Physics (JCAP) presents a methodology to test the ...

Does time always flow in one direction? This perplexing question has captivated philosophers and scientists for centuries, ...

A new study proposes a way to use weak gravitational lensing data to test the long-held Cosmological Principle of the ...

The Hubble tension just got tenser — with new measurements revealing that the universe is expanding faster than our current understanding of physics can explain. Over the past decade, cosmology ...

A unique dataset of Type Ia Supernovae being released today could change how cosmologists measure the expansion history of the Universe.