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Rhea Shows Off a Big Impact.


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Rhea, Saturn's second largest moon.
Rhea, Saturn's second largest moon.

Cassini took this image of Rhea, Saturn's second largest moon, on October 24, 2004 when it was about 1.7 million km (1 million miles) away. The photo clearly shows a bright bright impact crater near its eastern limb. Cassini will get another view of Rhea in January 2005 - but with 10 times better resolution - just after it releases the Huygens probe which will land on Titan.

Saturn's Moon Rhea shows off the Moon equivalent of a black eye - a bright, rayed crater near its eastern limb.

Rhea is about half the size of Earth's moon. At 1,528 kilometers (949 miles) across, it is the second-largest Moon orbiting Saturn.

The image was taken in visible light with the Cassini spacecraft narrow angle camera on Oct. 24, 2004, at a distance of about 1.7 million kilometers (1 million miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 40 degrees. The image scale is approximately 10 kilometers (6 miles) per pixel. Cassini will image this hemisphere of Rhea again in mid-January 2005, just after the Huygens probe landing on Titan - with approximately 1-kilometer (0.6-mile) resolution.

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 Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo.

For more information about the Cassini-Huygens mission, visit http://saturn.jpl.nasa.gov and the Cassini imaging team home page, http://ciclops.org.




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