Physics Question #317
Shagufta, a 12 year old female from the Internet asks on January 10, 1998,
What are cosmic rays?
viewed 13420 times
answered on January 10, 1998
Cosmic rays are high energy particles that bombard the earth from outer space. They are primarily made of protons, alpha particles and the nuclei of atoms like carbon, nitrogen, oxygen and other heavier atoms. Their energy varies considerably and their origin is unknown.
Add to or comment on this answer using the form below.
Note: All submissions are moderated prior to posting.
If you found this answer useful, please consider making a small donation to science.ca.