Multimedia Gallery
February 4, 2005
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The ALFA receiver (hanging from cable) enters the Gregorian dome high above the Arecibo dish
As morning mist blankets the Puerto Rico hills, workers prepare to bring the ALFA unit (hanging from a cable at the left) into the Arecibo telescope's Gregorian dome.
Credit: Acevedo, Arecibo Observatory, Cornell University
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Arecibo Begins Search for Dark Galaxies