“Antarctica Alert” –Ghostly Supermassive Black Hole Invader Detected

ancient quasar


On Sept. 22, 2017, a ghostly particle ejected from a far distant supermassive black hole zipped down from the sky and through the ice of Antarctica at just below the speed of light, with an energy of some 300 trillion electron volts, nearly 50 times the energy delivered by the Large Hadron Collider at CERN, the biggest particle accelerator on Earth. The cosmic invader set off a cacophony of code-red detectors in the The IceCube Neutrino Observatory at the South Pole, solving one of the enduring mysteries of physics and the cosmos.