Arecibo’s Damage is so Serious and Dangerous, They’re Just Going to Scrap the Observatory Entirely

This past summer, the Arecibo Observatory suffered major damage when an auxiliary cable that supports the platform above the telescope broke and struck the reflector dish. Immediately thereafter, technicians with the observatory and the University of Central Florida (UCF) began working to stabilize the structure and assess the damage. Unfortunately, about two weeks ago (on Nov. 6th), a second cable broke causing even more damage.

Following a thorough review, the U.S. National Science Foundation (NSF) announced that the observatory cannot be stabilized without risking the lives of construction workers and staff at the facility. As such, after 57 years of faithful service and countless contributions to multiple fields of astronomy, the NSF has decided to commence plans for decommissioning the Arecibo Observatory.

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A Broken Cable Smashed Part of the Arecibo Observatory

The Arecibo Observatory is an iconic institution. Located in Puerto Rico, this National Science Foundation (NSF) observatory was the largest radio telescope in the world between 1963 and 2016. While that honor now goes to the Five hundred meter Aperture Spherical Telescope (FAST) in China, Arecibo will forever be recognized for its contributions to everything from radio astronomy to the Search for Extraterrestrial Intelligence (SETI).

Unfortunately, the Arecibo Observatory suffered serious damage when on Monday, Aug. 10th, an auxiliary cable that supports the platform suspended above the telescope reflector dish broke. The cable struck the Gregorian Dome (which sits on the underside of the platform) before landing on the reflector dish, which created a gash over 30 meters (100 feet) in length and forced the observatory to temporarily shut down operations.

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