Astronomers might have found the first exoplanet outside of our Milky Way. Revealed by X-rays, the bizarre world is about as big as Saturn, has lived through a nearby supernova, currently orbits a black hole or neutron star, and is destined to experience a second nearby supernova in the future.
Ultrahot, ultrafast explosion called 'the Camel' has astronomers puzzled
Astronomers witnessed the spectacular death of a star as it happened - Observations with multiple telescopes yield new insights into the final stages in the evolution of a massive star before it exploded in a core-collapse supernova