Haystack Observatory, Astronomical observatory in Westford, Massachusetts, US
The Haystack Observatory houses an 18.3-meter radio telescope protected by a 28-meter-diameter Teflon fabric radome at 131 meters elevation.
The Massachusetts Institute of Technology built the facility in 1960 for the United States Air Force under the name Haystack Microwave Research Facility.
The Northeast Radio Observatory Corporation, formed by MIT and other universities, manages the facility for collaborative astronomical research and development.
Located 45 kilometers northwest of Boston, the observatory conducts geodetic measurements through very long baseline interferometry alongside global navigation satellite systems.
The Westford telescope initially demonstrated long-distance communication by reflecting radio signals off copper dipoles orbiting at 3,600 kilometers altitude.
Location: Massachusetts
Official opening: 1960
Elevation above the sea: 131 m
Address: 99 Millstone Road Westford, MA 01886
Phone: +16177155400
Website: https://haystack.mit.edu
GPS coordinates: 42.62330,-71.48820
Latest update: May 11, 2025 09:45
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