Gamma-ray astronomy is the study of celestial objects that emit gamma rays, the highest-energy form of electromagnetic radiation. This field helps scientists understand extreme cosmic events, such as supernovae, black holes, and neutron stars. Gamma rays can provide insights into the processes occurring in these energetic environments. To observe gamma rays, specialized telescopes are used, as Earth's atmosphere absorbs them. Instruments like the Fermi Gamma-ray Space Telescope and the Cherenkov Telescope Array detect gamma rays from space, allowing researchers to map their sources and learn about the universe's most violent phenomena.