Cosmic ray research studies high-energy particles from outer space that collide with Earth's atmosphere. These particles, known as cosmic rays, can originate from sources like supernovae and black holes. Scientists use detectors and observatories to measure their properties, such as energy and composition, to understand their origins and effects on the Earth. This research is important for various fields, including astrophysics and space exploration. Understanding cosmic rays helps scientists learn about the universe's structure and behavior, as well as the potential risks they pose to astronauts and technology in space.