SPACE PICTURES THIS WEEK: Rings Gored, Blue "Eye," More

SPACE PICTURES THIS WEEK: Rings Gored, Blue
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February 26, 2009--Arrows nestled among the fiery reds and oranges of dunes on Saturn's moon Titan depict the sand formations' movements in this image released by NASA's Jet Propulsion Laboratory.

NASA researchers used radar data gathered by the Cassini orbiter over four years to determine the dunes' paths.

The desert-like sand around the moon's midsection is thought to originate from organic haze particles falling from the sky, rather than from rock erosion as on Earth.

The results of the NASA research roughly match previous predictions made by climate models, suggesting that the new data from this study of Titan's sand could someday help scientists better predict the climate of Earth.

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—Image courtesy NASA/JPL/Space Science Institute
 
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