Astronomers have developed a new way to test one of the central assumptions of modern cosmology — that the universe behaves uniformly on the largest scales. When applying the method to real ...

Waterloo scientists have developed a new way to understand how the universe began, and it could change what we know about the Big Bang and the earliest moments of cosmic history. Their work suggests ...

Mathematicians are challenging the idea that dark energy is responsible for the accelerating expansion of the universe. In a new paper published in Proceedings of the Royal Society A, mathematicians ...

Dark energy has been a mysterious element of cosmological equation since it was proposed three decades ago, but new research says we can make the math of the universe’s expansion work without relying ...

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...