"No existing galaxy formation model within our standard cosmological paradigm can currently explain how this galaxy came to ...

Astronomers have long been puzzled by two strange phenomena at the heart of our galaxy. First, the gas in the central ...

"We don't know the frequency, so we need to keep tuning and trying different ones, like searching for a good radio station ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t account for half—until now.

The fast-moving gas cloud could help explain the so-called missing satellite problem, if the object is what scientists think ...

The rotating disk galaxy, mostly made up of dark matter, was discovered within a larger cloud of fast-moving hydrogen gas.

Published in Nature, scientists at King's College London, Harvard University, UC Berkeley and others have shared the ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

The detection of dark matter, the elusive type of matter predicted to make up most of the universe's mass, is a long-standing ...

Physicist Richard Lieu first explored the idea that gravity could exist without mass—now he’s got a new cosmological model ...

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

“If dark matter is a wave, then it's just oscillating up and down, so the way you try and detect it is you look for that oscillation, just like we looked for the oscillation of the axial quasiparticle ...