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NASA installs Dragonfly flight harness for nuclear-powered Titan mission

By SpaceEnergy 02 September 2026 1 min read
NASA installs Dragonfly flight harness for nuclear-powered Titan mission
Credit: NASA/Johns Hopkins APL/Ed Whitman

(SpaceEnergy) NASA’s Dragonfly team has installed the flight electrical harness on its Titan rotorcraft, completing a major integration milestone for the nuclear-powered spacecraft ahead of its planned 2028 launch.

The harness was installed on Dragonfly’s flight fuselage at the Johns Hopkins Applied Physics Laboratory (APL) in Maryland in July, NASA said on 2 September. It comprises about 5.28km of conductor wire and 374 connectors and weighs around 45kg.

The system distributes power and data between the lander’s computers, actuators, sensors, scientific instruments and battery. NASA said Dragonfly’s high power requirements necessitated both four- and eight-gauge wiring.

Its design also had to accommodate the rotorcraft’s thermal architecture. Dragonfly is insulated to retain heat from its nuclear power source in Titan’s extremely cold environment, requiring the harness to route beneath thick external foam insulation while allowing warm air to circulate internally.

“The harness doesn’t do anything by itself, but it is necessary for everything else to function,” APL Dragonfly lander harness lead Jackie Perry said. “We can’t do anything without it.”

The team will continue connecting the harness as instruments and other flight hardware arrive for integration and testing. Dragonfly is scheduled to launch in summer 2028 and reach Titan in late 2034.

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