BBC4 年
Puerto Rico: Iconic Arecibo Observatory telescope collapses
A huge radio telescope in Puerto Rico has collapsed after decades of ... following damage to its support system. The Arecibo Observatory telescope was one of the largest in the world.
Space on MSN2 个月
4 years after the giant Arecibo Observatory collapsed, we finally know what happened
They all happened at the Arecibo Observatory in Puerto Rico. With a spherical reflector dish that was 305 meters (roughly ...