4 ms·
Cosmic ray is not a light ray... It's not talking about rays of sunlight. http://en.wikipedia.org/wiki/Cosmic_ray http://en.wikipedia.org/wiki/Cosmic_ray
by overshard 13y ago
Cosmic ray is not a light ray... It's not talking about rays of sunlight.
http://en.wikipedia.org/wiki/Cosmic_ray http://en.wikipedia.org/wiki/Cosmic_ray