Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

Using gravitational waves as a measure of the universe's rate of expansion could solve the biggest headache in physics, the ...

How can the Universe be expanding at two distinct rates? This enigma, named the Hubble tension, has puzzled astronomers for several years. The origin of this tension lies in the discrepancy ...

For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right ...

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

Since humanity's earliest days, people have looked up at the stars, using science, art, religion, philosophy, mathematics, and any other tool at their disposal to better understand the complicated and ...

In the depths of the universe, where black holes collide and neutron stars crash, invisible ripples in spacetime are sent ...

The universe is expanding faster than previously thought, according to a team of astronomers using the Hubble Telescope. How much faster? Five to nine percent faster. Initially the expansion of the ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

A rare gravitationally lensed supernova called SN 2025wny appears in five separate images due to the gravity of two ...

Researchers from the University of Bologna and the Leibniz Institute for Astrophysics Potsdam (AIP) along with other institutes have proposed a new way to address the Hubble tension by comparing ...