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

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at ...

Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

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

A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show! ESA’s XMM-Newton and other X-ray telescopes are capturing massive bursts of ...

This was a sign that the galaxy's sleeping black hole was waking from its slumber, according to the study published in the journal Nature Astronomy. Most galaxies, including our home Milky Way ...