The working title of the thing, if you will, is Titan Sample Return Using In-Situ Propellants, and that pretty much says it all. What we have here is a spaceship tasked with traveling to Saturn’s moon, land there, and start collecting samples.
When all is done, it should be able to head back home with pieces of the alien world, using propellants it will manufacture on-site through some mysterious process, using volatile substances available on the surface.
How it is all supposed to work is anybody’s guess, as this concept is still in its (very) early stages. There’s also a lot NASA still has to learn about Titan before deciding if this is a feasible concept or not.
The American space agency is already planning a mission to Titan, the largest moon in our solar system and the only other celestial body in relative vicinity to have stable surface liquid bodies.
The mission will take off in 2026, but it won’t reach its destination, about a billion miles away, until 2034. The whole adventure is centered around a drone called Dragonfly, which is to study the moon for close to three years in search of, well, life.