Seeing a Stellar Collision Produce a Supernova for the First Time

James Maynard
Sep 3 · 4 min read

Watching a stellar collision produce a supernova — a never-before seen sight!

An artist’s impression of a black hole as it readies to plunge into a companion star. Image credit: The Cosmic Companion

In a star-forming dwarf galaxy 480 million light years from Earth, an ultra-dense stellar remnant — likely a black hole or neutron star — collided with its stellar companion.