Are Cosmic Rays Just Electromagnetic Rays from Space?

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Cosmic rays are primarily composed of protons, making up about 90% of their composition, along with electrons and heavier particles. They differ from electromagnetic rays, as cosmic rays are charged particles rather than electromagnetic radiation. The solar wind, which consists mainly of electrons and protons, is distinct from cosmic rays. Secondary radiations such as gamma and X-rays are produced when cosmic rays interact with atmospheric atoms and the Earth's magnetic field. Understanding cosmic rays involves recognizing their composition and the effects they have when entering the Earth's atmosphere.
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Are cosmic rays electromagnetic rays coming down from outer space? I've also read they are actually 90 percent protons, but I'm not sure what they are now. Thanks in advance.
 
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The solar wind is largerly electrons and protons, and cosmic rays are also largely electrons and protons, but also heavier particles.

One will find references to Galactic Cosmic Radiation (GCR).

Here is a good reference - http://helios.gsfc.nasa.gov/cosmic.html
http://imagine.gsfc.nasa.gov/docs/science/know_l1/cosmic_rays.html
http://www-spof.gsfc.nasa.gov/Education/wcosray.html

http://www.oulu.fi/~spaceweb/textbook/crays.html

http://hyperphysics.phy-astr.gsu.edu/Hbase/astro/cosmic.html

http://www2.slac.stanford.edu/vvc/cosmic_rays.html


Gamma and X-rays are secondary radiations from the cosmic rays (charged particles) interacting with the atoms/nuclei in our atmosphere and the Earth's magnetic field.
 
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