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

The strange behavior of hypervelocity stars suggests a nearby dwarf galaxy must contain a supermassive black hole. If so, a ...

Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars ...

The passing gravitational waves “stretch or contract the universe by around 20 meters [about 65 feet] or so,” says Matthew ...

Researchers said on Thursday that they had discovered twin-lobed radio jets they suspect were formed when the universe was ...

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

Supermassive black holes are seen as sources of wanton cosmic destruction, but there may be more to their powerful influence ...

Observations from NASA's Chandra X-ray telescope and the VLT have revealed jets blasting from supermassive black holes cause ...

At double the width of our Milky Way galaxy ... quasars are galactic cores with gas and dust falling into a black hole, releasing a tremendous amount of energy that makes them exceedingly luminous.

So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

Does the LMC have a supermassive black hole (SMBH) that's ejecting some HVSs into the Milky Way? Most stars in the Milky Way travel at about 100 km/s, whereas HVSs can travel as quickly as about ...