This dimension groups observatories by the part of the electromagnetic spectrum they are built to observe, such as radio, infrared or X-ray. Wikipedia notes that the spectrum divides, "from low to high frequency," into "radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays." Browsing by observing band collects every observatory built to study the same kind of radiation.
Facts
Comparison
Field Origin Era Radio
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Sources
1. Wikipedia: Radio telescope
Wikimedia FoundationRadio telescope, history sectionQuote, Radio telescope, history section
Radio waves from space were first detected by engineer Karl Guthe Jansky in 1932 at Bell Telephone Laboratories in Holmdel, New Jersey using an antenna built to study radio receiver noise.
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