On September 22, 2017, scientists operating the IceCube Neutrino Observatory in the remote wastes of the Antarctic made a mind-boggling discovery. For the first time ever, they had observed the path of a neutrino, a particle from deep space that is nicknamed the “ghost particle.” The implications for our understanding of the universe are immense.
The Austrian-American physicist Victor Hess discovered in 1912 that our planet is showered by high-energy particles emanating from space. Hess won the Nobel prize for physics in 1936 for his work on cosmic rays. Another scientist, Robert Millikan, coined the term “cosmic rays” in 1925.