Editing Observatory (section)

====Radio observatories====
Beginning in 1933, [[radio telescope]]s have been built for use in the field of [[radio astronomy]] to observe the Universe in the radio portion of the electromagnetic spectrum. Such an instrument, or collection of instruments, with supporting facilities such as control centres, visitor housing, data reduction centers, and/or maintenance facilities are called ''radio observatories''. Radio observatories are similarly located far from major population centers to avoid [[electromagnetic interference]] (EMI) from [[radio]], [[TV]], [[radar]], and other EMI emitting devices, but unlike optical observatories, radio observatories can be placed in [[valley]]s for further EMI shielding. Some of the world's major radio observatories include the [[Very Large Array]] in [[New Mexico]], United States, [[Jodrell Bank]] in the [[United Kingdom|UK]], [[Arecibo Observatory|Arecibo]] in [[Puerto Rico]], [[Parkes Observatory|Parkes]] in [[New South Wales]], Australia, and [[Llano de Chajnantor Observatory|Chajnantor]] in [[Chile]]. A related discipline is [[Very-long-baseline interferometry]] (VLBI).{{citation needed|date=March 2024}}