Titan, one of Saturn’s 60 something moons, is covered with lakes and seas of liquid methane which means landing a spaceship on Titan would be quite difficult. But landing a spaceship *under* the methane seas of Titan… well, that’s an entirely new set of problems – and NASA intends to figure out how to do it.
To explore Titan’s undersea world, NASA proposes development of a submersible autonomous vehicle – in other words, a remote-controlled submarine. By 2040, they would like to send this submarine to Titan’s largest northern sea, Kraken Mare, which is comparable in size to the Great Lakes in the United States. The submarine will investigate Titan’s ocean to discover and determine its chemical composition, how its currents flow, and what the seabed of Kraken Mare looks like.
And for those that are wondering, yes, they will also be looking for any sign of life in Titan’s waters.