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's first data release offers a breathtaking glimpse into our universe, revealing over 26 million galaxies and ...

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 ...

The unusual galaxy was profiled in two complimentary studies. The first study, led by Doctoral Candidate Yimeng Tang of the University of California, Santa Cruz and published in the journal ...

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

NASA and SpaceX are targeting no earlier than 4:15 a.m. EDT on Monday, April 21, for the next launch to deliver scientific ...

A network of Earth's best clocks will be synchronised with the most accurate one ever sent into space. But the device has a ...