NASA’s Dragonfly Completes Wiring as Titan Landing Site Is Named

NASA’s Dragonfly rotorcraft has reached a major assembly milestone at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, where engineers finished installing the spacecraft’s electrical harness on the flight fuselage. At the same time, the International Astronomical Union (IAU) has officially named the dune field on Saturn’s moon Titan where Dragonfly will land: Ahmakiq Undae.

The harness, essentially the rotorcraft’s nervous system, transmits power and data between Dragonfly’s computers, actuators, sensors, scientific instruments, and battery. APL is responsible for designing, building, and operating the mission for NASA.

A wiring milestone years in the making

The flight-ready harness includes an estimated 17,315 feet of conductor wire and 374 connectors and weighs about 100 pounds. “The harness doesn’t do anything by itself, but it is necessary for everything else to function,” said Jackie Perry, Dragonfly lander harness lead at APL. “It’s critical hardware that exists only to serve the rest of the lander. We can’t do anything without it.”

Perry’s team reached the installation milestone in July after the flight structure was delivered and the remote interface units and temperature sensors were installed. “Once the flight structure was delivered and the remote interface units and temperature sensors were installed, we were able to start laying the harness,” Perry said. Dragonfly passed its critical design review in 2022, and harness fabrication began in late 2024 and finished about a year later. The wiring harness is typically one of the first major components delivered to a spacecraft under construction, since nearly every other system depends on it for power and communication once integration begins.

Engineering for Titan’s extreme cold

The wire is silver-coated copper, insulated in a heat-resistant polymer coating and wrapped with aluminum, then attached to plastic and metal connectors. Because Dragonfly is built with a thermos-bottle design that retains heat from its nuclear power source to survive Titan’s extreme cold, the harness had to route beneath a layer of thick exterior foam insulation while accommodating the circulation of warm air through the interior. Dragonfly’s high power demands require both 4-gauge and 8-gauge wire, and the harness must weave through a densely packed interior that includes the flight system, instrument boxes, and a nearly 300-pound battery. Dragonfly is scheduled to launch in summer 2028 and reach Saturn’s moon Titan in late 2034.

Titan landing region gets an official name

Separately, the IAU has approved the name Ahmakiq Undae for the large dune field south of Selk Crater where Dragonfly will land. The region has a diameter of approximately 500 miles (810 kilometers) and borders the roughly 50-mile (80-kilometer) diameter Selk impact crater. In the Mayan tradition, people appealed to the spirit Ahmakiq, pronounced “ah-mahk-eek,” to stop strong winds from damaging their crops; the name translates to “one who locks up the wind.” The choice follows IAU convention for naming dune fields, or undae, after gods and goddesses of wind. The Dragonfly team selected Ahmakiq from a list of IAU-suggested names.

Why Selk Crater matters

Deposits formed during the impact that created Selk Crater are a primary exploration target for the mission. Scientific analysis indicates the impact melted the icy bedrock, potentially creating a large temporary pool that could have remained liquid for hundreds to thousands of years under an insulating ice layer, comparable to winter ponds on Earth. Once Dragonfly reaches Titan, it will conduct a 3.3-year primary mission exploring environments ranging from organic dunes to the impact deposits at Selk Crater, where liquid water and complex organic materials key to life once existed together.

The wiring harness and the newly named landing region mark two milestones on parallel tracks: one hardware, one scientific, both advancing a mission designed to search Titan’s surface for the chemical building blocks of life. Perry’s team will continue connecting the harness to science instruments and other flight components as they arrive at APL for integration and additional testing ahead of the 2028 launch window.

Dragonfly is part of NASA’s New Frontiers program, which funds focused planetary science missions selected competitively for their potential to answer targeted questions about the solar system. Titan, the only moon in the solar system with a dense atmosphere and stable liquids on its surface, offers scientists a rare opportunity to study prebiotic chemistry in an environment unlike anywhere else humans have explored. As hardware integration continues at APL over the next two years, the mission’s landing site now carries an official name tying its exploration plans to the Selk Crater region for the remainder of the program.

Source: NASA, Johns Hopkins Applied Physics Laboratory / Dragonfly Mission. Primary source: https://science.nasa.gov/blogs/dragonfly/2026/09/02/nasas-dragonfly-gets-wired-up-while-titan-landing-area-is-named/.