Black holes are notorious for gobbling up, well, everything. They're icons of destruction, ruthless voids, ambivalent abysses from which nothing can return — at least, according to pop culture.

The gravitational wave background that Miles refers to was created by merging supermassive black holes in the early and distant universe. It was first revealed by a gravitational wave detector ...

The current generation of gravitational wave detectors could "hear" supernovas over 65 million light-years away, helping scientists determine if a dying star creates a black hole or a neutron star.