A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion ...

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

Astrophysicists from the University of Waterloo have observed a new jellyfish galaxy, the most distant one of its kind ever captured. Jellyfish galaxies are named for the long, tentacle-like streams ...

Gravitational lensing exposed a distant protocluster once seen as a faint smudge, revealing eleven dusty star-forming galaxies through combined ALMA and NSF VLA observations.

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you purchase ...

Consensus on the universe’s expansion rate might be near, thanks to the James Webb telescope The biggest clash in cosmology might be inching closer to resolution, thanks to the James Webb Space ...