A massive radio telescope at Puerto Rico’s Arecibo Observatory – one of the world’s largest – collapsed on Tuesday after sustaining severe damage since August, officials said, following 57 years of astronomical discoveries. The telescope’s 900-ton receiver platform and the Gregorian dome — a structure as tall as a four-story building that houses secondary reflectors — fell onto the northern portion of the vast reflector dish more than 400 feet below. The telescope – which received radio waves from space – had been used by scientists around the world to hunt for possible signatures of extraterrestrial life, study distant planets and find potentially hazardous asteroids. It also gained fame after pivotal scenes in the 1995 James Bond film “GoldenEye” starring Pierce Brosnan were shot there. The collapse stunned many scientists who had relied on what was until recently the largest radio telescope in the world. “It sounded like a rumble. I knew exactly what it was,” said Jonathan Friedman, who worked for 26 years as a senior research associate at the observatory and still lives near it. “I was screaming. Personally, I was out of control…. I don’t have words to express it. It’s a very deep, terrible feeling.”