Mystery of the Missing Waves on Titan
http://science.nasa.gov/science-news/science-at-nasa/2013/22jul_titan/

One of the most shocking discoveries of the past 10 years is how much the landscape of Saturn’s moon Titan resembles Earth. Like our own blue planet, the surface of Titan is dotted with lakes and seas; it has river channels, islands, mud, rain clouds and maybe even rainbows. The giant moon is undeniably wet.

The “water” on Titan is not, however, H2O. With a surface temperature dipping 290 degrees F below zero, Titan is far too cold for liquid water. Instead, researchers believe the fluid that sculpts Titan is an unknown mixture of methane, ethane, and other hard-to-freeze hydrocarbons.

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They ought to send some more landers there, with better cameras and sample testing gear.

Does this mean we can’t go surfing with aliens?