UPDATE 1 December 9AM: The structure did not survive the night. 

NASA aerial photo Arecibo Observatory 66.75261W 18.34607N

The radiotelescope at Arecibo Observatory will be shut down and dismantled, the National Science Foundation determined this month. Arecibo has contributed to astronomical research ranging from the planetary to the extragalactic scale for over 50 years. Recent damage from storms and aging appears unrepairable, and NSF now plans for its careful disassembly for safety reasons.

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