Astronomers analyzing gravitational-wave data from the LIGO-Virgo-KAGRA Collaboration have reported that merging binary black ...

Two large particle jets in the core of a distant galaxy likely represent two black holes in their final phase before merging.

A giant black hole in NGC 4486B reveals a recent cosmic merger that has astonished the astronomical community.

Artemis II is nearing its end, but NASA's moon missions are only just beginning. Here's what next, including that ...

Would this uninvited guest swallow up everything on its way through the Solar System?

Ripples in the very fabric of space and time called "gravitational waves" may have provided the first tantalizing evidence of ...

If you were to drift, suitless, through the vacuum of space, the brief moments before your death would be utterly silent.

The crew of the Artemis II mission is homeward bound, following their record-breaking journey around the moon.

Caltech’s Katie Bouman explains how the Event Horizon Telescope Collaboration captured the first imager of the Sagittarius A* ...

A blazing galaxy half a billion light-years away could offer us a real-time, front-row seat to a supermassive black hole ...

NASA’s Artemis II mission is only the tip of the space agency’s lunar-exploration spear: planning for a plethora of ...

NASA’s Artemis II astronauts captured images of the far side of the moon, revealing never-before-seen insight into the moon’s ...