The halo is more extended that astronomers originally thought, and contains enough hydrogen gas to resolve the problem of the ...

A new analysis of the sky has finally confirmed where the missing half of the Universe's visible matter has been hiding.

The ultimate purpose of PUNCH is to use its four instruments — three wide-field imagers (WFI) and a near-field imager (NFI) — ...

Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island have found compelling evidence of a dark matter-deficient dwarf galaxy, FCC 224. This ultra-diffuse galaxy is located on the ...

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...

Dark matter makes up most of the universe, yet we still don’t know what it really is. Now, NASA is turning to artificial intelligence to crack this cosmic puzzle. Their cutting-edge AI system is ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Astronomers have used space-based telescopes, including NASA's Swift X-ray observatory, to watch a monster black hole spring ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and ...

VISIONS of leaving Earth and launching humanity further into the cosmos are enough to get anyone starry-eyed. But the ...