NASA said CDG-2 “may be among the most heavily dark matter-dominated galaxies ever discovered” ...

Astronomers working with the Hubble Space Telescope have identified a nearly invisible galaxy in the Perseus Cluster that appears to consist almost entirely of dark matter. Designated Candidate Dark ...

NASA scientists published their discovery of a galaxy containing more dark matter than any other. Photos courtesy of Dr. Li ...

A NASA space telescope on a mission to map millions of galaxies has turned on its detectors for the first time, capturing images of tens of thousands of stars and galaxies. The SPHEREx, which is short ...

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

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.

Scientific advancements have made it possible to peek into a faraway galaxy that has big implications.

A new NASA space observatory, called SPHEREx, is scheduled to launch into orbit Thursday on a mission to map more than 450 million galaxies.

NASA’s newest space telescope rocketed toward orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies and their shared cosmic glow since the ...

NASA telescopes have spotted a galaxy cluster 8.5 billion light-years away, the space agency announced Tuesday. It is the ...

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 ...

A new NASA observatory launched into space Tuesday on a mission that could help scientists unravel what happened in the first fractions of a second after the Big Bang. The SPHEREx mission (short for ...