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Chaotically tumbling and seriously eroded by impacts, Hyperion is one of Saturnís more unusual satellites. Scientists believe the moon to be quite porous, with a great deal of its volume being empty space.
Impact blasted Hyperion is 270 kilometers (168 miles) across. Only part of the moon is visible in this image, the rest being hidden in shadow.
The image was taken with the Cassini spacecraft narrow-angle camera using a spectral filter sensitive to wavelengths of infrared light centered at 930 nanometers. The view was acquired on Feb. 15, 2007 at a distance of approximately 224,000 kilometers (139,000 miles) from Hyperion. Image scale is 1 kilometer (4,404 feet) per pixel.
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.