Enlarge / A model of the supernova exploding inside a torus of gas ejected years earlier. One of the stranger features of our Universe is the existence of what you might call “dual-core stars.” Many stars exist as part of
Enlarge / A model of the supernova exploding inside a torus of gas ejected years earlier. One of the stranger features of our Universe is the existence of what you might call “dual-core stars.” Many stars exist as part of