The universe is expanding, but astronomers still cannot agree on exactly how fast. That mismatch, known as the Hubble tension ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

As Gen Alpha’s attention drifts from TV and movies, video creators like Alan Chikin Chow are eager to fill the void.

These gigantic structures, which contain hundreds or even thousands of galaxies bound together by gravity, offer important ...