In a baffling cosmic mystery, astronomers have reported a star that appeared to vanish without a trace. One night it was ...

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

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

After decades of inactivity, the black hole at the galaxy's heart burst with light. Now, the cosmic monster appears to be doing something that is forcing astronomers to re-evaluate their understanding ...

Scientists have uncovered the strongest evidence yet for the existence of elusive intermediate-mass black holes (IMBHs), long ...

This galaxy's central black hole appears to be a "messy eater" as its interstellar scraps are strewn into space.

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

"This rare event provides an opportunity for astronomers to observe a black hole's behavior in real time," said astronomer Lorena Hernández-García.

STEVE BENHAM, KATU digital content producer: I want to talk about the new way astronomers are finding black holes using Gaia data, but before we get into that ... there's gas or a star falling ...

A high-energy photonic jet (white and blue) blasts through a collapsar with a black hole at its center. The red space around the jet represents the cocoon where free neutrons may be captured ...

Astronomers are investigating the longest and most energetic bursts of X-rays seen from a newly awakened black hole. Watching this strange behavior unfold in real time offers a unique opportunity to ...

The photo suggests that interstellar 'scraps' of matter are being strewn into space as ... the winds inhibit star formation. "It also shows that the more powerful black holes impede their own ...