Cold Moon

Bright ribbons of clouds and dark lakes and seas highlight the northern hemisphere of Titan, the largest moon of Saturn. The lakes and seas, at top, are filled with liquid ethane and methane, while the bright while clouds are made of the same compounds. Other features include dune fields and a possible ice volcano (small circle at bottom center). Although Titan is much colder than Earth, the seas, clouds, dune, and other features make it resemble our own world. The image was compiled from images snapped by Cassini, which peered through the clouds that hide the surface from view. [NASA/JPI/SSI]