When a star dies in a massive explosion, it leaves behind a supernova remnant - an expanding cloud of gas and dust that tells the story of its violent end. Thanks to Hubble’s breathtaking 4K images, ...

An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact ...

The only place that's likely to happen is at the very center of our galaxy. And, for a while, there was an excess of ...