A black hole’s bizarre "heartbeat" is forcing astronomers to reconsider how these cosmic heavyweights behave.

Researchers have combined 15 years' worth of radio data to peer through the cone of a high-energy jet and unravel the magnetic mysteries of a "blazar" billions of light-years from Earth. The new ...

Travel to the event horizon in this amazing new black hole visualization from NASA's Goddard Space Flight Center. Credit: ...

The simplest explanation — that Punctum is an extreme example of something familiar — hasn’t been ruled out. A magnetar in an unusual environment, a supernova remnant tangled with dense material, or ...

Two exotic new theories suggest dark matter could be either made from tiny black holes or formed by Hawking radiation at the cosmic horizon.

They wouldn’t last for long, but the emissions from tiny black hole buds could light the way to quantum gravity.

We call black holes in this gap lite intermediate mass black holes or lite IMBHs, because they are the least massive black holes that we expect to exist from sources other than stars. They are no ...

The Webb telescope found that a far-off little red dot is the oldest known black hole, shrouded by gas that could help explain the ruby color.