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, revealing information that other wavelengths cannot. To observe gamma rays, specialized telescopes, like the Fermi Gamma-ray Space Telescope, are used. These instruments detect and analyze gamma-ray emissions from space, allowing researchers to map the universe's most energetic phenomena. This research contributes to our understanding of fundamental astrophysical processes and the nature of the universe.