This December's dazzling display comes from a strange asteroid with comet-like behavior—and a tail of debris that astronomers ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

The terrifying plunge of a JetBlue flight bound for New Jersey has revived a question that sounds like science fiction but is ...

The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

A remarkably clean gravitational-wave detection has confirmed long-standing predictions about black holes, including ...

The Geminids peak when the moon is 30 percent full, according to the International Meteor Organization. To get a hint at when ...

NASA’s new X‑ray images reveal how supermassive black holes sculpt galaxy clusters. Jets, bubbles, and ripples reshape cosmic ...

When and how to experience the six‑minute “eclipse of the century” on Aug. 2, 2027, as totality sweeps Spain, North Africa ...

A seven-hour gamma-ray burst, GRB 250702B, stuns astronomers and hints at powerful new cosmic engines still unknown to science.

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...