No no, it's cooler than that. We tried out aviation on Mars to make sure we figured out how to do aviation on Titan.

Incidentally, that mission was one of those surprising successes. The drone they sent was really barebones so it could tag along on another mission. Lots of people thought even doing that was a waste of launch mass. Nobody expected it to work all that well. It ended up working incredibly well and got used far beyond its planned mission until its rotor blades broke.

Now the team gets to build a real one.