The Chandra X-ray Observatory view of galaxy group NGC 4839 has revealed that it is "plunging into the Coma galaxy cluster ...

Spring skies reveal some of the best galaxies visible to backyard telescopes.

Astronomers working with NASA’s James Webb Space Telescope have produced the sharpest wide-area map of dark matter ever ...

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

Two powerful instruments of the NASA/ESA/CSA James Webb Space Telescope joined forces to create this scenic galaxy view. This ...

Black hole GW190412 has been caught speeding away from its birth site at about 112,000 miles per hour (180,000 kilometers per ...

Light emitted from a spiral galaxy during the Tyrannosaurus rex era was captured in a striking photo by the James Webb Space ...

A galaxy whose light set out when Tyrannosaurus rex had just died out has been captured in striking detail by the James Webb ...

A new study suggests the Sun moved outward with many similar stars during a large Milky Way migration event long ago.

A new image captured by the Very Large Telescope reveals stars and gas orbiting the "invisible giant" at the heart of our ...

Each spring, amateur astronomers attempt the ultimate stargazing challenge—an overnight quest to spot every galaxy, nebula, and star cluster in Charles Messier’s famous catalog. Photographer Alan Dyer ...

Astronomers have discovered the brightest fast radio burst ever detected and traced it to a nearby galaxy using a new network of CHIME Outrigger telescopes. The flash, nicknamed RBFLOAT, lasted only a ...