Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that ...

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 ...

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

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.

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

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

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

The axion quasiparticle forms when the interaction between the electric field and magnetization oscillates in a specific ...

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

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