A Methane Sea on Saturn’s Moon Titan Could Be Over 1,000 Feet Deep - Gizmodo

Data gathered by NASA’s Cassini probe has allowed scientists to estimate the depth of Kraken Mare—the biggest methane sea on Saturn’s moon Titan.

As the new research shows, the deepest parts of Kraken Mare could be more than 1,000 feet (300 meters) deep.

Using this technique, the team measured the depth of Moray Sinus, a northern estuary on Kraken Mare, which they found to be 280 feet (85 meters) deep.

As the authors write in the study, the NASA probe found “no evidence for signal returns from the sea floor, suggesting the liquid is either too deep or too absorptive for Cassini’s radio waves to penetrate.” That said, if the liquid in this part of the sea is similar in composition to the liquid found at Moray Sinus, then it must be deeper than 330 feet (100 meters) and possibly as deep as 1,000 feet (300 meters), according to the study.

Poggiali is hopeful that a robotic submarine might be sent to Titan one day to explore Kraken Mare or some other body of water.