"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 ...

There could be a dark galaxy in our midst. In research published today in Science Advances, researchers from the Chinese ...

"The new model can account for both structure formation and stability, and the key observational properties of the expansion ...

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

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 ...

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

The CMZ spans almost 700 light years and contains some of the most dense molecular gas in the galaxy. Over the years, ...

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

It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study ...

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