ARECIBO, Puerto Rico - Video released by the National Science Foundation (NSF) shows the exact moments the receiver of the radio telescope at the Arecibo Observatory in Puerto Rico collapsed.Two different angles of the collapse were released and the first shot shows the 900-ton receiver platform hanging when its cables suddenly snap and the receiver falls out of frame.
In the second angle, taken by NSF drone, the first cable that snaps triggers subsequent cables to break, and the receiver falls out of frame.The receiver, which also held the Gregorian dome, fell onto the northern portion of the vast reflector dish more than 400 feet below.The NSF had earlier announced that it would close the radio telescope.