Home to oceans of liquid methane, Saturn’s moon Titan is one of the most fascinating bodies in the solar system. Now scientists have used radar to probe the depth of its largest sea, Kraken Mare, and estimated it to be at least 300 m deep.Saturn’s moon Titan is one of the most fascinating bodies in the solar system, not least because it’s home to huge oceans, lakes and rivers of liquid methane. Now scientists have used radar to probe the composition and depth of its largest sea, Kraken Mare, and estimated it to be at least 300 m (1,000 ft) deep. Depths of alien ocean probed with radar in Cassini study