From: utzoo!decvax!harpo!floyd!vax135!ariel!lime!houxe!hogpc!houxm!ihnp4!ihuxr!lew
Newsgroups: net.physics
Title: cosmic rays
Article-I.D.: ihuxr.407
Posted: Fri Apr 22 15:51:36 1983
Received: Mon Apr 25 19:26:01 1983

I recall that the most energetic cosmic rays have energies in
excess of 1e20 eV. They are talking about teravolts ( 1e12 eV ) for
these new accelerators, so I'm not worried.

Cosmic rays include all high energy particles that reach the earth,
so they are almost by definition the highest energy particles in
nature that we know of. It is my impression that theorists are hard
put to come up with mechanisms to account for the observed energies.

	Lew Mammel, Jr. ihuxr!lew