Astronomers have observed a gamma-ray burst (GRB) that challenges decades of understanding about these cosmic explosions.

Astronomers have discovered the most powerful cosmic explosions since the Big Bang, naming them "extreme nuclear transients." These incredibly energetic explosions occur when stars with masses at ...

Venus CEO Sassie Duggleby said bringing Melroy made a lot of sense. "Her career has run the gamut of all the areas that we're trying to hit. Once we got introduced to Pam, it was an absolute ...

Massive stars know how to go out in style. Some of the brightest, longest-lived flares probably come from megastars getting shredded by supermassive black holes, researchers report in the June 6 ...