The Hubble Space Telescope may have just found a rare "missing link" black hole hiding in Earth's cosmic backyard.
Located roughly 6,000 light-years away at the core of the nearby star cluster Messier 4, the intermediate-mass black hole candidate is an ultradense region of space packed with the mass of 800 suns, causing nearby stars to orbit it like "bees swarming around a hive," according to the researchers who detected it.
