Astronomers have identified what they believe to be the largest structure in the universe to date. Named "Quipu" after the ancient Incan method of record-keeping, this colossal superstructure ...

What will happen to the solar system when the Milky Way completes the merger with the Andromeda Galaxy? Bryan ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

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

The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

"It's only because this object is so extreme that we can observe it from Earth, even though it's really far away," Anniek ...

Scientists have discovered an enormous radio galaxy 32 times the size of the Milky Way. They nicknamed it "Inkathazo," or ...

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

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Astronomers have discovered what they are calling the largest-known structure in the universe. Named "Quipu" after an Incan ...