This dimension groups observatories by the year they began operating. Wikipedia notes that observatories have long been built for disciplines including "astronomy, climatology/meteorology, geophysics, oceanography and volcanology," with new instruments continually replacing older ones as technology improves. Browsing by operational start year lets a visitor compare observatories that came online in the same period.
Facts
Comparison
Field Origin Era 21st century
Filter Results19 entries
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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