The quasi-periodic eruptions of X-rays from a black hole 300 million light-years away are unlike any researchers have ever seen before.

In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending ...

A distant galaxy that lay quiet for decades has suddenly stirred, lighting up in dramatic bursts that have caught astronomers ...

Scientists Stunned As 'Sleeping' Black Hole Wakes Up And Starts Shooting The Most Powerful X-Ray Blasts Ever Black holes have always been an intriguing object for astronomers to observe in space.

Extreme cosmic events such as colliding black holes or the explosions of stars can cause ripples in spacetime, so-called gravitational waves. Their discovery opened a new window into the universe. To ...