What are cosmic rays?
A)lasers used as weapons by extraterrestrials
B)another name for gamma rays and X- rays
C)subatomic particles that travel close the speed of light
D)fast- moving dust particles in the interstellar medium
E)the highest- energy form of light

Question

Quizplus · Accepted Answer

Cosmic rays are subatomic particles that originate from outside the Earth's atmosphere and travel through space at near the speed of light. They can be positively charged particles like protons and alpha particles, as well as negatively charged particles like electrons. Cosmic rays can originate from sources such as supernova explosions and black holes.

What Are Cosmic Rays