NASA's Dragonfly rotorcraft is scheduled to land on the Selk Crater region of Saturn's moon Titan in 2034. The region is a patchwork of sand dunes and broken-up ice. "Dragonfly will land in an equatorial, dry region of Titan, a frigid, thick-atmosphere, hydrocarbon world. It rains liquid methane sometimes, but it's more like a desert on Earth," a researcher said.