A massive collision of galaxies sparked by one traveling at a scarcely-believable 2 million mph (3.2 million km/h) has been ...

While astronomers have taken about two dozen zoomed-in images of stars in our galaxy, unveiling their properties, countless other stars dwell within other galaxies, so far away that observing even one ...

A galaxy traveling at a blistering two million miles per hour (3.2 million km/h) has torn through five neighboring galaxies, creating one of the most powerful intergalactic shock waves ever observed.

Our best view yet of the material linking clusters of galaxies may have pinpointed some 20 percent of the universe’s missing ...

To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, ...

A group of international scientists discovered three ultra-massive “Red Monster” galaxies capable of forming their own stars ...

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they ...

The James Webb Space Telescope (JWST) has discovered three massive galaxies, dubbed "red monsters," that challenge current ...

Out of the limelight, theoretical physicists continue to seek a mathematical model that can explain the universe's particles and forces.

For a long time, astronomers believed galaxy formation followed a very specific model: cosmic gas collects in clumps, stars ...

In the early Universe, long before they should have had time to grow, astronomers have found what they're calling 'red ...

Cosmic strings could also be detectable in the Cosmic Microwave Background (CMB) – the leftover radiation from the Big Bang ...