As you descend toward a black hole, time slows to a crawl and light bends into oblivion. Cross the horizon, and your fate is sealed - crushed, stretched, and obliterated by tidal forces. Known as ...

ANDREWS REPLIES: To answer Scott: If Planet Nine is discovered, I’m confident a probe would eventually be sent to it! But after launch it might take decades for a spacecraft to reach that destination, ...

ESA's Gaia mission, the Very Large Telescope and other ground-based telescopes have discovered stellar black hole Gaia BH3. It's mass is "33 times that of our Sun," according to the European Southern ...

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 ...

Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

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

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its ...

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

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

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

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

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