NASA’s Crazy Plan to Send a Space Submarine to Titan

Titan, Saturn’s largest moon, is home to the first lakes discovered beyond Earth, and NASA wants to build a submarine to explore them.
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Calm Seas on Saturn's Moon Titan Offer a Smooth Landing for Future Missions
“The liquid-hydrocarbon lakes and seas on Titan are incredibly calm, suggesting that future missions to the huge Saturn moon could enjoy a smooth ride to the surface, a new study reports.”
‘Electric Sand’ May Shape Titan Moon’s Strange Surface
“Electrified sands on Saturn's largest moon, Titan, may stick together due to static cling, potentially meaning that sand castles there would last for weeks, a new study finds.”
Titan: Facts About Saturn's Largest Moon
“Titan is Saturn's largest moon and the second largest in the solar system (after Ganymede of Jupiter). It is the only moon in the solar system with clouds and a dense, planet-like atmosphere.”