They may appear to be completely unrelated, but the truth is that they all deal with electromagnetic radiation. The difference between these devices is that they each deal with a different type of EM radiation. Radio waves, Microwaves, Infrared, visible light, ultraviolet, x-rays, and gamma rays, all move at the same speed, but with different wavelengths and frequencies. There are more than one method of viewing our universe. The human eye has rods and cones that are precisely the right size to detect visible light At one-fourth the size of the wavelength of visible light, our eyes are perfectly suited for this application.
Bees have the ability to see some UV rays, and dogs and owls can see some infrared.
This is possible because the apparatus of their visual sensory organs are sized differently than ours. Some stellar objects can be seen using light telescopes, but we can learn much more by detecting other types of EM radiation Microwaves, Infrared, and radio wave detection can yield results that never could have been found using light. The Gamma Ray One form of electromagnetic radiation is the gamma ray. It has the smallest wavelength and highest frequency of any EM radiation. 10 m. Gamma rays have more energy than any other EM radiations, and they often accompany alpha or beta particles.