Video: Neutron stars rip each other apart to form black hole

(Phys.org) —This supercomputer simulation shows one of the most violent events in the universe: a pair of neutron stars colliding, merging and forming a black hole. A neutron star is the compressed core left behind when a star born with between eight and 30 times the sun's mass explodes as a supernova. Neutron stars pack about 1.5 times the mass of the sun—equivalent to about half a million Earths—into a ball just 12 miles (20 km) across.

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