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

Part of testing is pushing components way past their limits, so it's entirely possible that the team predicted a fiery end.

Dozens of startups working on data centers, mining and pharmaceuticals are hanging on Elon Musk's long-stalled megarocket.

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 sightings came at a surreal moment. About an hour after the spacecraft swung around the Moon's farside, the Sun slipped ...

Since 2018, astronomers have detected a series of ultra-bright blue explosions known as LFBOTs, some reaching luminosities up to 100 times greater than typical supernovae. One recent event, nicknamed ...

"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 ...