Add Yahoo as a preferred source to see more of our stories on Google. NASA's Chandra X-ray Observatory releases its longest-spanning video of X-ray data yet. - NASA / CXC / SAO / Pan-STARRS ...

Astronomers have discovered a strange new signal coming from an exploding star — a “chirp” that speeds up over time, similar to the signals seen when black holes collide. The unusual pattern appeared ...

Some massive stars may go out with a fizzle, not a bang. A star that winked out of view could be a “failed supernova,” a stellar explosion that petered out instead of fully detonating, a new study ...

Astronomers have turned a famous star explosion into a 25‑year time‑lapse, using a NASA telescope to watch the superheated gas race through space and slam into its surroundings. The new study using ...