Cosmicray

Cosmic rays are high-energy particles that originate from various sources in space, including the Sun, other stars, and distant galaxies. These particles, primarily consisting of protons and atomic nuclei, travel through space at nearly the speed of light and constantly bombard the Earth's atmosphere. When they collide with atmospheric particles, they create showers of secondary particles that can be detected on the ground. The term "cosmic rays" is somewhat misleading, as they are not electromagnetic rays but rather particles. In Hebrew, cosmic rays are referred to as קרני קוסמיות. In other languages, they are known as rayos cósmicos in Spanish, rayons cosmiques in French, and Kosmische Strahlung in German. The study of cosmic rays is crucial for understanding high-energy astrophysical processes, the composition of the universe, and the interactions of particles at extremely high energies. Additionally, cosmic rays have practical implications for space travel, satellite technology, and even the design of high-altitude aircraft, as they can pose radiation hazards.