Lakes on two worlds

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Montage of lake reflections on Earth and Titan.
Credit: ESA / NASA / JPL / University of Arizona / DLR / Planetary Landscapes

This is a beautiful montage showing sunlight reflecting off lakes on two different worlds. A water lake (of course) on Earth and a methane lake on Saturn’s moon Titan. While the composition is quite different, the hydrological and methanological processes are remarkably similar, with rain, rivers, lakes and seas. Familiar but alien at the same time… Thanks to Planetary Landscapes for use of this image!

Cassini finds alien version of ‘Nile River’ on Titan

Titan’s version of the Nile River stretches across this radar image; part of the Ligeia Mare sea is also visible on the right side of the image. Credit: NASA / JPL-Caltech / ASI

Want to go river rafting on Titan? The largest moon of Saturn is the only other place in the solar system known to have rivers, lakes and seas on its surface. Appearance-wise, they are eerily similar to their earthly counterparts, but are composed of liquid methane instead of water, in Titan’s extremely cold environment. Now, the Cassini spacecraft has found the largest Titanian river system yet, similar to the Nile River on Earth, as announced on December 12, 2012.

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