Runaway black hole provides evidence to support Einstein’s theory of gravity, Harvard astronomers say - Metro

Harvard-Smithsonian astronomers have observed a gigantic black hole speeding away from its home galaxy like a pebble from a slingshot. The runaway black hole is a curiosity that provides key support for Albert Einstein’s nearly century-old theory of general relativity -- and a rare glimpse of a cosmic eviction unfolding in our universe.