In a patch of sky about 1. 2 billion light-years from Earth, astronomers have found a cosmic rarity: three galaxies caught in ...

Webb and Chandra reveal two spiral galaxies after an encounter, exposing heated gas, newborn stars and distorted arms, while ...

The Champagne Cluster is a rare and beautiful example of two galaxy clusters smashing together. Its festive name comes from both its New Year’s Eve discovery and its bubbly appearance in space. Images ...

Both NASA’s James Webb Space Telescope and Chandra X-ray Observatory caught these two galaxies in a close embrace.

NASA has released a new composite image of two spiral galaxies, NGC 2207 and IC 2163, as they begin a multi-billion-year process of merging into a single celestial entity.

Some 1.2 billion light-years from Earth, a massive event is unfolding on cosmic scales. There, not two, but three galaxies are gradually coming together in a giant, triple collision named ...

Mizzou scientists using NASA’s James Webb Space Telescope found unusual "platypus galaxies" that could change what we know ...

A newly revealed cosmic image shows two galaxy clusters colliding as one. Nicknamed the Champagne Cluster, it offers rare ...

Gas cloud collisions during galaxy mergers compress interstellar material, triggering new star formation, as observed in interacting systems studied by NASA and reported by Universe Today.

Nearly all stars are found inside or around galaxies, but there are ways for stars to escape into intergalactic space.

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...