One of the most luminous supernovae ever discovered provides evidence that such extremely bright explosions require exotic sources.
Astronomers can't agree on what kind of strange stellar death created a brilliant source dubbed "the Cow."
In 2016 an amateur astronomer was testing his camera — and captured the first flash of a supernova.
Between the discovery of the new comet ASASSN1 and two stellar explosions, there's a lot happening in the sky this week. Take your telescope out and see what all the excitement's about.
Astronomers may have watched a star collapse directly into a black hole — minus the supernova. The failed supernova could help understand how stars die.