A vampire’s black hole is a ‘cosmic particle accelerator’ that could solve a long-standing astronomical mystery

Scientists may have found evidence that black vampire holes that feed on their victim stars – so-called microquasars – are the cosmic particle accelerators responsible for mysterious high-energy cosmic rays we see bombarding Earth. These stellar-mass black holes exist in binary systems with a supergiant star from which they greedily strip material. Some of that … Read more