This is a color image of an aerial view of the radio telescope at Arecibo, Puerto Rico. The telescope is embedded in the ground and surrounded by hills. There are buildings and roads leading to the telescope. This is a daytime photo with the light coming from the sun overhead. The top label on the verso side of image states" "Aerial view of the world's largest (305M) radio telescope at Arecibo, Puerto Rico; operated by NAIC (National Astronomy & Ionosphere Center) at Cornell under contract to the National Science Foundation. (AC81-0378-1)". The label below it states "This is how the antenna looked until a major upgrade in 1995-98.". The label at the bottom left corner states "Photo provided by NASA Ames Research Center, Moffett Field, California 94035-1000."