Brightest Supernova Ever Seen Pushes Theoretical Models to the Edge

Researchers have discovered the brightest supernova ever seen, and the unusual object powering it could challenge what physicists know about dying stars.

When massive stars die, they do not go gently into the night. Instead, they expel most of their mass outward in a powerful explosion called a supernova, leaving behind a glowing cloud of gas and the collapsed remains of the former star’s core. In June 2015, a supernova appeared in the sky over the Southern Hemisphere, and astronomers bel

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