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 Gamma-ray
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Sources
1. Wikipedia: Space telescope
Wikimedia FoundationSpace telescope, lead sectionQuote, Space telescope, lead section
Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory 2 launched in 1968, and the Soviet Orion 1 ultraviolet telescope aboard space station Salyut 1 in 1971.
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