SpaceGiant black hole seen flickering on and off after galaxy snack Active Galactic Nuclei occur when a black hole devours a cloud of gas and dust and shines really brightly. Now one has been seen doing it twice News
SpaceLIGO’s third detection hints at how black hole binaries are born The latest signal from the gravitational wave detector backs up Einstein’s theory of general relativity and gives more clues on how black holes get their spin News