Gamma-ray-astronomy meaning

The branch of astronomy that uses observations of emissions in the gamma-ray part of electromagnetic spectrum to study extraterrestrial sources such as stars and galaxies.
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The study of astronomical objects by analyzing the gamma rays they emit. Because gamma rays are subject to atmospheric interference that makes them difficult to observe using ground-based telescopes, high-altitude balloons and orbiting observatories are often used to detect them. Most gamma rays in the universe are produced by events such as supernovas and black holes.
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