Galaxies

A new study used the James Webb Space Telescope to study how our universe's first galaxies were.

Two galaxies connected by a bridge of hydrogen gas are falling into the Virgo Cluster.

The discovery of a rare runaway galaxy suggests some isolated systems were shaped by past group interactions before being flung into solitude.

An image from NASA's Chandra X-ray observatory shows a glowing hand stretching across the cosmos with its palm and fingers sculpted from the wreckage of a massive stellar explosion.

The impending merger of the two galaxies hints at what might be in store for the Milky Way and the Andromeda galaxy if and when they collide.

A distant galaxy nicknamed "Cosmic Grapes" is bursting with massive star-forming clumps — far more than expected — offering fresh clues about how galaxies grew in the early universe.

Only a fraction of the size of the Milky Way, these galaxies have thus far been too faint for most telescopes to spot.

NASA has unveiled a dazzling new collection of cosmic images from the Chandra X-ray Observatory, capturing spectacular stars and galaxies in unprecedented detail.

A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black holes or a cosmic particle accelerator.

Astronomers have taken an unprecedentedly detailed look at the tendrils and filaments that wrap around supermassive black hole-dominated galaxies of Abell 2255.