Rare intergalactic supernova may have been seen outside the Milky Way

A ring-shaped object 160,000 light years away may be the first intergalactic supernova remnant ever observed

By Jonathan O’Callaghan

The remains of a star that exploded in intergalactic space, outside the realms of any galaxy, may have been spotted by astronomers for the first time.

Many exploding stars, or supernovae, have been seen across the universe. While most reside inside galaxies, some have been seen outside galaxies. These are known as intergalactic supernovae, and may have ended up there after the stars were thrown from their host galaxies. We …