Redirected from Cosmic radiation
Cosmic rays can be conceptually broken into different kinds:
Cosmic rays can have energies up to 10E14 MeV 1
Cosmic rays were initially considered to come from some source other than the Sun. This was because the Sun was thought to emit little but visible light, and, of course, cosmic rays are isotropic and would arrive at Earth from all directions.
References:
wikipedia.org dumped 2003-03-17 with terodump