Space Radiation

Space radiation is composed of energetic charged particles (atoms with all of the electrons striped).¬†Astronauts are exposed to secondary neutrons as well.¬†The radiation environment of deep space is different from that on the Earth’s surface or in low Earth orbit, due to the much larger flux of high-energy galactic cosmic rays (GCRs), along with radiation from solar proton events (SPEs) and the radiation belts.