NASA’s $3,350,000,000
NASA’s Dragonfly mission, a \$3.35 billion nuclear-powered rotorcraft, has passed a major development milestone—its Critical Design Review—paving the way for final assembly and a 2028 launch. Unlike traditional rovers, Dragonfly is a flying laboratory with eight rotors, capable of hopping across Titan, Saturn’s largest moon. Powered by a radioisotope thermoelectric generator, it will cover over…