The Arecibo Observatory, formerly owned by the US National Science Foundation (NSF) in Puerto Rico, housed the world's largest single-unit radio telescope until 2016. It served as a crucial facility for radio and radar astronomy, planetary science, and atmospheric studies. Although the telescope collapsed in December 2020 and won't be rebuilt, its data and legacy continue to contribute to discoveries related to pulsars, asteroids, galaxies, exoplanets, and the search for extraterrestrial intelligence (SETI).
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The Rimae Bode analysis used ground-based radar data from the Arecibo Observatory for pyroclastic mapping.
NASA paid part of Arecibo Observatory’s operating costs and used the telescope as a planetary radar for studying solar system objects, notably near-Earth asteroids.
Arecibo Observatory's 305-meter radio telescope observing platform collapsed on 2020-12-01.
The Commonwealth of Puerto Rico is assigning and allocating $8,000,000 to start reconstruction work at Arecibo Observatory.
Wanda Vázquez Garced signed an executive order on 2020-12-28 making it the formal policy of the Commonwealth of Puerto Rico to rebuild the 305-meter radio telescope at Arecibo Observatory.
The 305-meter radio telescope at Arecibo Observatory collapsed on 2020-12-01 when a series of cables supporting a 900-ton observing platform snapped.
NSF will provide the full funding it had planned to allocate to Arecibo Observatory for fiscal year 2021.
The National Science Foundation announced on 2020-11-19 that it will perform a controlled decommissioning of the giant radio telescope at the Arecibo Observatory in Puerto Rico.
Part of Arecibo’s funding comes from NASA, which uses a planetary radar system at the observatory to track and characterize near-Earth objects as part of NASA’s planetary defense program.