The Future of Mars Sample Return

Titan isn't covered in liquid water the way that we have rivers and oceans here on Earth. Presently all the liquids are at the poles because it's a little bit colder there. At the equator it's a giant global desert. You have these dunes that wrap all the way around the moon. What they're made out of is one of the key objectives of Dragonfly actually. It's going to land in the dunes and sample it and tell us what they're made from. They're probably organic solids that form high up in the atmosphere and fall down to the surface slowly.