Evidence of Massive Cosmic Blast 1,200 Years Ago – Cause Unknown
Japanese physicists have identified a mysterious blast of high-energy radiation that struck Planet Earth more than 1,200 years ago – some 20 times larger than normal variations. The cosmic origins of this ancient and massive radiation event, however, are still unknown. Cosmic-ray physicists from Japan’s Nagoya University, led by Fusa Miyake, discovered the radioactive event – said to have occurred