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

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

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

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

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

Astronomers have identified a new ultra-diffuse galaxy that appears to defy one of the fundamental assumptions of modern ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

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

An extremely bold hypothesis proposes transient temporal singularities remove the need for dark matter and dark energy.

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

If dark matter is creating positrons in the CMZ, those particles will eventually slow down and eventually annihilate with electrons in the environment, producing gamma-rays at exactly 511keV energy.

In the vast universe, galaxies rotate in ways that don’t make sense if only visible matter is considered. For almost a ...