Nearly every large galaxy has a supermassive black hole at its heart. The one in the middle of the Milky Way, called Sagittarius A (with an asterisk denoting star), is about 4 million times more ...

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

In fact, they were seen inside the biggest cluster of stars in the Milky Way, and the sheer scale of it is enough to make our minds boggle. The black holes were found right in the middle of the ...

Solar material is gusting out of the dark patch in the Sun's corona towards Earth at more than a million miles per hour.

But it likely won't fall in. An artist's rendering of a white dwarf star speeding around the black hole 1ES 1927+654. A stream of particles trails the dense star. Credit: Aurore Simonnet / Sonoma ...

The star has become a black hole. Einstein showed a century ago that the mass of stars, planets, and all other matter exerts a gravitational force, bending space like a rubber sheet. The greater ...

Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

NEW YORK (AP) — Scientists have spotted what appear to be two stars whipping around ... galaxy has a supermassive black hole at its heart. The one in the middle of the Milky Way, called ...

New York — Scientists have spotted what appear to be two stars whipping around each other near the supermassive black hole at the center of our Milky Way galaxy. Nearly every large galaxy has a ...