The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

The universe is overrun with dark matter, outweighing the ordinary stuff that stars and planets are made of five-to-one. But ...

A Hubble Space Telescope study takes a close look at the dwarf galaxies surrounding Andromeda. Credit: NASA / ESA / J. Dalcanton / B.F. Williams / L.C. Johnson / PHAT team / R. Gendler Surrounding the ...

The red arc at the center of this Hubble Space Telescope image is a distant galaxy, called HerS 020941.1+001557. It appears to be partially circling another galaxy, SDSS J020941.27+001558.4, and seems ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.

The discovery of CDG-2 began when a team of astronomers investigated tight groupings of stars called globular clusters, which ...

The Hubble Space Telescope has captured imagery of spiral galaxy UGC 2890. The "galaxy lies around 30 million light-years ...

NASA's Hubble Space Telescope has unveiled the closest-ever look at a monster black hole devouring its cosmic surroundings. This supermassive black hole, at the heart of a quasar known as 3C 273, ...

The spiral galaxy NGC 3596 is on display in this NASA/ESA Hubble Space Telescope Picture of the Week, which incorporates six different wavelengths of light. ESA/Hubble & NASA, D. Thilker You might ...

The Bullseye galaxy is two and a half times the size of our Milky Way and has nine rings. Fifty million years ago, two galaxies met up in space. One was tiny, the other large. The small galaxy flew ...