The first official image from the Vera Rubin Observatory has revealed a ghostly river of stars stretching farther than our ...

Astronomers have revolutionized our understanding of a collection of stars in the northern sky called the Pleiades. They used ...

For the first time, scientists have built a digital version of the Milky Way that follows the motion of individual stars, not ...

Astronomers have long puzzled over the cause of a mysterious “glow” of very high energy gamma radiation emanating from the ...

The size of the universe depends on its shape, with possibilities ranging from finite and spherical to flat or even infinite.

"The discovery of this stream highlights how much is still unknown about the life histories of galaxies, how the hidden ...

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an ...