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08-September-2005, 10:36 AM
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Spotty Janus
SUMMARY: NASA's Cassini spacecraft took this photograph of Janus, one of Saturn's many moons. The 181 km (113 mile) moon is covered with craters and patches of dark material exposed by numerous impacts. Astronomers think that Janus may be a porous object, largely composed of water ice. This image was taken when Cassini was approximately 357,000 km (222,000 miles) away from Janus.
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