Astronomy is definitely a passion of mine so I think telescopes are pretty cool, especially big ones. The biggest telescope out there is the 305m radio telescope at Arecibo Observatory. Because radio waves are larger than optical waves, the surface of the antenna does not have to be as smooth allowing the telescope to be built much larger. The dish of Arecibo is made of some 40,000 perforated aluminum panels. Here is a nice diagram of how Arecibo works.
The Arecibo Observatory is often used for SETI projects (among many other scientific research projects) and is also highly recognizable because it has been used in Contact by Ellie (the lead character) and as part of the villain’s evil plan in James Bond’s GoldenEye. Large telescopes often look fairly interesting from satellite imagery as well. Wikimapia has been used to mark a number of those telescopes to provide us with information about them. I will start with Arecibo and move on to a four large optical telescopes and two additional radio telescopes. Clicking an image will either take you to a larger image or to the location at Wikimapia.
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