For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the ...

Most of the universe is slipping away from the Milky Way, carried outward as space itself expands. Yet one giant neighbor is bucking the trend, racing straight at us while almost every other major ...

For decades, scientists have theorized that the Milky Way Galaxy’s supermassive black hole, known as Sagittarius A* (Sgr A*), ...

For many years, scientists have tried to understand how the Milky Way is positioned in space, and how it moves together with ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 ...

It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral galaxies colliding is ...

On a clear night, the Milky Way and the Andromeda galaxy look like close neighbors. In space, they really are.

Massive stars have an outsized influence on their environment and the galaxies they call home. These behemoths have the ...