For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based facilities, including NASA’s Neil Gehrels Swift Observatory, they traced the neutrino to a black hole tearing apart a star, a rare cataclysmic occurrence called a tidal disruption event.

For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based facilities, including NASA’s Neil Gehrels Swift Observatory, they traced the neutrino to a black hole tearing apart a star, a rare cataclysmic occurrence called a tidal disruption event.

Astronomers found something they weren't expecting at the heart of the globular cluster NGC 6397: a concentration of smaller black holes lurking there instead of one massive black hole.

When three galaxies collide, what happens to the huge black holes at the centers of each? A new study using NASA’s Chandra X-ray Observatory and several other telescopes reveals new information about how many black holes are furiously growing after these galactic smash ups.

Astronomers have no evidence that a distant black hole estimated to weigh between 3 billion and 100 billion times the mass of the Sun is anywhere to be found.

Some of the Hubble Space Telescope’s most iconic images are the deep fields, which unveil myriad galaxies across the universe, stretching back to within a few hundred million years of the big bang. The galaxy tapestry was uncovered by Hubble peering at a single patch of seemingly empty sky for hundreds of hours.

Astronomers are searching for signs of a supermassive black hole in the galaxy cluster Abell 2261. Scientists think this galaxy underwent a merger with another galaxy, which could have caused a newly formed larger black hole to be ejected. Astronomers do not yet know what happened to this giant black hole.

Using the unique capabilities of NASA's Hubble Space Telescope, a team of astronomers has discovered the most energetic outflows ever witnessed in the universe.

The hungriest of black holes are thought to gobble up so much surrounding material they put an end to the life of their host galaxy by creating an energetic object called a quasar. Now, researchers found a galaxy that is surviving the black hole’s ravenous forces, continuing to birth about 100 Sun-sized stars a year.

Astronomers studying nearby galaxy IC 5063 are tantalized by a similar effect in images taken by NASA's Hubble Space Telescope. In this case, a collection of narrow bright rays and dark shadows is seen beaming out of the blazingly bright center of the active galaxy.

Matter swirling around supermassive black holes creates bursts of light that "echo" in nearby dust clouds. These traveling signals could serve as a new cosmic yardstick.

The telltale sign that the black hole was feeding vanished, perhaps when a star interrupted the feast. The event could lend new insight into these mysterious objects.

A Tour of Cases of Black Hole Mistaken Identity

About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy. Now, eons later, astronomers are using NASA's Hubble Space Telescope's unique capabilities to uncover even more clues about this cataclysmic explosion.

A Tour of a Black Hole Outburst Caught on Video

A Quick Look at a Black Hole Outburst Caught on Video