National Radio Astronomy Observatory

The National Radio Astronomy Observatory ( NRAO ) is a public American research organization for radio astronomy. The institute was founded on 17 November 1956. NRAO designs, builds and operates radio telescopes at several locations primarily in the United States.


Charlottesville, Virginia

The headquarters is located in Charlottesville ( Va. ) on the grounds of the University of Virginia. There is also operated by the NRAO North American center for the scientific use of the Atacama Large Millimeter Array ( ALMA) and a technology center.

Green Bank, West Virginia

The Green Bank Observatory is located near Green Bank, West Virginia. The surroundings of this observatory has been declared to the National Radio Quiet Zone of the United States. Here disturbing artificial radio emission is trying to keep as low as possible. The Green Bank Observatory has several large individual radio telescopes.

Socorro, New Mexico

In the vicinity of Socorro (New Mexico), the Very Large Array and the Very Long Baseline Array are operated by the Array Operations Center AOC. It is located on the campus of the New Mexico Institute of Mining and Technology.

Tucson, Arizona

In Tucson in the state (Arizona ), a millimeter -wave radio telescope with 12 m diameter antenna at Kitt Peak National Observatory was operated on the grounds of the University of Arizona. In order to free up funds for the Atacama Large Millimeter Array, this telescope has now been handed over to the University of Arizona.

Santiago, Chile

In Santiago de Chile, the NRAO is involved with the European Southern Observatory and the Canadian National Research Council on the Atacama Large Millimeter Array, ALMA. It is located in northern Chile at about 5000 meters above sea level and was officially put into operation on 13 March 2013. A total of 66 antennas are constructed.