FILE - In this Tuesday, Aug. 11, 2020 file photo, provided by the Arecibo Observatory, shows the damage done by a broken cable that supported a metal platform, creating a 100-foot (30-meter) gash to the radio telescope's reflector dish in Arecibo, Puerto Rico.
(Arecibo Observatory via AP)SAN JUAN – The National Science Foundation announced Thursday that it will close the huge telescope at the renowned Arecibo Observatory in Puerto Rico in a blow to scientists worldwide who depend on it to search for planets, asteroids and extraterrestrial life.
The independent, federally funded agency said it’s too dangerous to keep operating the single dish radio telescope -- one of the world’s largest -- given the significant damage it recently sustained.
An auxiliary cable broke in August and tore a 100-foot hole in the reflector dish and damaged the dome above it.
Then on Nov. 6, one of the telescope’s main steel cables snapped, leading officials to warn that the entire structure could collapse.