On January 28, 1986, Space Shuttle Challenger broke apart just 73 seconds after liftoff. Pilot Michael Smith's final words ...

A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught ...

Scientists are recovering rare meteorite fragments after a daytime explosion.

Astronomers have spotted a bizarre cosmic explosion that refuses to play by the rules—and it’s leaving scientists scrambling for answers. GRB 250702B, detected by NASA’s James Webb Space Telescope and ...

The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back ...

There are roughly 10,000 Starlink satellites in low Earth orbit, over a third of all the tracked objects in that part of ...

"For the most part, massive stars make black holes. The more massive the star, the heavier the black hole," Fishbach said, until stars reach a certain mass threshold beyond which the physics of their ...

A new analysis from NASA using the Hubble Space Telescope shows that the Crab Nebula, the remnant of a supernova recorded in ...

An underwater observatory recently detected a startlingly energetic cosmic neutrino. One possible cause involves a phenomenon ...

NASA’s Hubble telescope captured an “extraordinarily” rare moment of a comet exploding into fragments, the space agency said. The comet K1, whose full name is C/2025 K1 (ATLAS), was caught fragmenting ...