Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Cosmic radiation refers to high-energy particles that originate from outside of Earth's atmosphere, such as protons and atomic nuclei. These particles can come from various sources in space, including the sun, distant stars, and even black holes.
Solar wind refers to a continuous flow of charged particles (mainly electrons and protons) emitted by the sun into space. This stream of particles carries energy and magnetic fields throughout the solar system.
Gamma rays are a type of electromagnetic radiation that has extremely high energy. They are often produced during nuclear reactions or by celestial events like supernovae.
Neutrinos: Neutrinos are subatomic particles that have no electric charge and very little mass. They can pass through matter almost undisturbed and are produced in various astrophysical processes.