
Jellyfish in the ocean of space

Supernovae produce some of the most powerful explosions in the cosmos, expelling a doomed star’s contents at velocities reaching 10 percent the speed of light. It usually takes a few weeks or months for a supernova to fade into nothingness, but astronomers have now documented a record-setting case in which a star was extinguished in just a few days. Continue reading Rare Type of Supernova Extinguishes Star at Unprecedented Speed
Thirty million years ago in a galaxy not so far, far away, a star exploded. Three years ago, light from that explosion finally made it to Earth, where scientists watched the explosion unfold from start to finish.
Continue reading THIS STAR WENT SUPERNOVA WITH THE FORCE OF 100 MILLION EXPLODING SUNS