The idea that gravity shapes the universe into nicely bounded superclusters is being overturned by a finding so gargantuan that it could send cosmologists back to the drawing board. The new mapping of ...

SEATTLE – An international team of astronomers using NASA’s Hubble Space Telescope has created the first three-dimensional map of the large-scale distribution of dark matter in the universe. Dark ...

The universe is expanding, but astronomers still cannot agree on exactly how fast. That mismatch, known as the Hubble tension, has turned a seemingly simple number into one of the biggest headaches in ...

A still image from the 3D animation created from data collected by the Keck Cosmic Web Imager (Caltech/R. Hurt) (CN) — Outer space may seem dark and impossibly vast, a mostly empty place punctuated ...