You are here: Home / News & Events / News / 2013 News / IceCube discovers PeV neutrinos

IceCube discovers PeV neutrinos

Main Content

The IceCube Neutrino Observatory -- a huge telescope in the Antarctic ice -- has detected two neutrinos with the highest energies ever observed, exceeding 1 PeV.
IceCube discovers PeV neutrinos

Image: courtesy IceCube collaboration

Most neutrinos reaching the Earth originate either in the Sun or in our atmosphere through the interaction of incoming cosmic rays. However, the IceCube Neutrino Observatory in the Antarctic (which includes Penn State faculty Doug Cowen and Tyce DeYoung ) has detected 28 extremely high-energy neutrinos that likely originate outside our solar system. Two of these neutrinos had energies exceeding 1 peta-electron volt (PeV), far higher than the highest-energy neutrino that any man-made particle accelerator has ever produced. The discovery was announced this week at the IceCube Particle Astrophysics Symposium in Madison, Wisconsin.

Filed under: