The biggest gamma-ray generator of all is the Universe.Īre radio waves completely different physical objects than gamma-rays? They are produced in different processes and are detected in different ways, but they are not fundamentally different. Gamma ray: Doctors use gamma-ray imaging to see inside your body. Hot gases in the Universe also emit X-rays. X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. "Hot" objects in space emit UV radiation as well. Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. Fireflies, light bulbs, and stars all emit visible light. In space, infrared light helps us map the dust between stars. Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. Microwave: Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies. Radio waves are also emitted by stars and gases in space. Radio: Your radio captures radio waves emitted by radio stations, bringing your favorite tunes.
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