The Arecibo Radio Telescope, which is located at Arecibo, Puerto Rico, is the largest dish antenna in the world. It spans 1,000 feet across. It redirects and focuses radio waves heard from the sky into a feed antenna that is suspended above it on cables. The dish itself is immobile, constructed into a bowl in the landscape. The telescope is directed at various changing parts of the sky by shifting the dome (feed antenna) on its metal track, which is curved.<ref>https://www.inverse.com/article/15804-how-do-we-talk-to-aliens-scientists-meet-in-puerto-rico-to-hash-it-out</ref> | The Arecibo Radio Telescope, which is located at Arecibo, Puerto Rico, is the largest dish antenna in the world. It spans 1,000 feet across. It redirects and focuses radio waves heard from the sky into a feed antenna that is suspended above it on cables. The dish itself is immobile, constructed into a bowl in the landscape. The telescope is directed at various changing parts of the sky by shifting the dome (feed antenna) on its metal track, which is curved.<ref>https://www.inverse.com/article/15804-how-do-we-talk-to-aliens-scientists-meet-in-puerto-rico-to-hash-it-out</ref> |