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 ...

The black hole at the heart of galaxy SDSS1335+0728, located 300 million light-years away, was quiet for decades as it ...

"This pushes our models to their limits and challenges our existing ideas about how these X-ray flashes are being generated." ...

A recent astronomical discovery is revolutionizing our understanding of spiral galaxies. A giant spiral galaxy, located ...

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 ...

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

The black hole at the center of a galaxy named SDSS1335+0728, about 300 million light-years away, first showed signs of stirring when, in 2019, the galaxy started shining brightly. But since 2024, ...

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 ...

Researchers made a fascinating discovery at the heart of our galaxy: "strange filaments" driving a cycle of gas emissions and replenishment.

Scientists have observed a previously inactive supermassive black hole producing regular, powerful X-ray eruptions that ...