Astronomy milestone: Scientists capture first image of two black holes orbiting each other MARCAPhysicists detect rare ‘second-generation’ black holes that prove Einstein right… again Live ScienceGravitational wave events hint at ‘second-generation’ black holes Phys.orgScientists hear 2 newborn black holes ‘crying’ through ripples in spacetime — and one had a birth unlike anything seen before SpaceTwo Black Hole Mergers Emitted Gravitational Waves, Upholding Einstein’s Theory of Relativity Discover Magazine
