The observatory's main instrument was the Arecibo Telescope, a 305 m (1,000 ft) spherical reflector dish built into a natural sinkhole, with a cable-mount ...
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The Arecibo Telescope was a 305 m (1,000 ft) spherical reflector radio telescope built into a natural sinkhole at the Arecibo Observatory located near ...
For more than 50 years, the Arecibo Telescope was the world's largest single-aperture telescope. In July 2016 the Five-hundred-meter Aperture Spherical ...