![The Explosion that Transformed Astronomy](https://hight3ch.com/wp-content/uploads/2017/11/the-explosion-that-transformed-a-800x440.jpg)
A startling collision in an ancient galaxy slews Earth’s largest telescopes to a spot in the Hydra constellation. Two rapidly spinning neutron stars have violently merged to form a possible black hole. And, for the first time, astronomers see its electromagnetic flash and hear its gravitational thunder as they watch new elements being born.