Discover seven unusual galaxies defying scientific predictions, from impossibly bright early universe objects to astrophysics ...

A new JWST study finds early galaxies at redshift 6–10 may be nearly as old as the universe at that time. One galaxy even appears older than cosmic age estimates, potentially challenging the standard ...

The Andromeda galaxy's family of satellite galaxies point towards the Milky Way, and nobody knows why.

The discovery reinforces established theories about space. There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to astronomers. As many as ...

Astronomers have discovered a rare group of five dwarf galaxies located relatively close to Earth; these galaxies exist in a near-perfect alignment, resembling a string of cosmic pearls in the sky.

Look across the night sky and it is easy to think the universe is mostly stars, galaxies and the planets that orbit them. Yet when astronomers tally up the amount of ordinary, or “baryonic,” matter ...

Findings from a new study into the cosmic "afterglow" may rewrite the history of the universe, according to researchers. This afterglow—the "cosmic microwave background" (CMB), the relic radiation ...