Gamma-ray research involves studying high-energy electromagnetic radiation with wavelengths shorter than those of X-rays. Gamma rays are produced by nuclear reactions and radioactive decay, and are typically emitted by sources such as pulsars, black holes, supernovae, and other high-energy astronomical events. Researchers study gamma rays to better understand the universe, study the properties of gamma-ray sources, and investigate the physical processes that produce these high-energy photons. This research area often involves using satellites, telescopes, and other astronomical instruments to detect and analyze gamma-ray emissions from various sources in the universe.