Cosmic rays are high-energy particles that originate from outer space and travel at nearly the speed of light. They primarily consist of protons, but can also include heavier atomic nuclei and electrons. Cosmic rays can originate from various sources, including supernova explosions, active galactic nuclei, and the remnants of stellar processes. When cosmic rays enter the Earth's atmosphere, they can interact with atmospheric molecules, leading to a cascade of secondary particles, including muons, neutrinos, and other subatomic particles.
New to topics? Read the docs here!