Cosmic radiation consists of high-energy particles traveling through space at nearly the speed of light. Some originate from the Sun, while others come from distant supernovae and black holes. When these particles enter Earth’s atmosphere, they create secondary radiation that can affect satellites and astronauts.
Studying cosmic radiation helps scientists understand space weather and its impact on technology and human health. Astronauts on long missions face exposure risks, leading to research on shielding methods. Cosmic rays also provide clues about the origins of the universe and extreme astrophysical events.