Popular ideas include a ‘terror’ of black holes and a ‘silence’ of black holes. Earlier this year, astronomers went hunting for a supermassive black hole somewhere by the constellation Ara, nearly 8,000 light-years from Earth. But instead of one mega black hole, they made a startling discovery: a congregation of many mini black holes, maybe 40 or 50 of them, orbiting frenetically within the dense core of a globular star cluster.Read Full Story