Saturn and Methane


Saturn and MethaneThis picture of Saturn was made by the Cassini spacecraft at wavelengths of light that are absorbed by methane. The darker areas are regions where light travels further into the atmosphere, passing through more methane before being reflected off of clouds. The deeper the light goes, the more of it gets absorbed by methane, and the darker that part of Saturn appears.

The small moon just below the rings on the right is Dione.

Image Credit: NASA

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