A kilonova is a huge explosion in space that is unlike anything you have ever heard of. That’s because it’s not just one star breaking up or exploding. Instead, it’s two stars coming together and putting on a great light show that’s unlike anything else in the universe.
A kilonova is so rare that not much is known about it. It’s hard enough to find one star that has reached the end of its life cycle, let alone two that are coming together.
But recently, NASA’s Hubble Telescope saw a kilonova, which was really something special, very unique, and amazing.