Date: Sun, 19 May 2013 06:44:29 +0200
- About.com Physics
Capturing Cosmic Rays in a Jar
Did you know that every moment, your body is being bombarded by particles with their origin in distant galaxies? These cosmic rays, as they're called, come from supernovas in distant star systems. Upon reaching the Earth's atmosphere, these particles from the "primary cosmic ray" collide with the molecules there and emit other particles that are part of a "secondary cosmic ray." It's these secondary particles that actually reach us on the surface of the Earth....