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The Arecibo Telescope collapsed.

Historical image related to The Arecibo Telescope collapsed. from December 1, 2020

Arecibo Telescope

Former radio telescope in Puerto Rico

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 Arecibo, Puerto Rico. A cable-mounted, steerable receiver and several radar transmitters for emitting signals were mounted 150 m…
Source: Wikipedia (CC BY-SA)

December 1

Day of the year

December 1 is the 335th day of the year in the Gregorian calendar; 30 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)