making solar cells for Dragonfly impractical. Like Cassini, Dragonfly will be nuclear-powered by a radioisotope thermoelectric generator (RTG). The generator uses plutonium-238 as a power source.
The spacecraft will then spend six years making its way to Titan, the second-largest moon in the solar system (after Jupiter's Ganymede). Related: NASA greenlights 2028 launch for epic Dragonfly ...
NASA has chosen SpaceX's Falcon Heavy rocket for the Dragonfly mission to Saturn's moon, Titan. Scheduled for 2028, this $3.35 billion project will send a nuclear-powered octocopter to explore Titan's ...