LLNL Delivers Gamma-ray Spectrometer for NASA's Dragonfly Mission to Titan

The advanced instrument will help characterize the chemical composition of Saturn's largest moon.

Apr. 10, 2026 at 2:40am

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A bold, abstract painting in muted earth tones depicting the intricate geological and chemical forces at play on the surface of Titan, Saturn's largest moon, conveying the structural order and complexity of this alien world.An advanced gamma-ray spectrometer from LLNL will help unravel the complex chemistry of Saturn's moon Titan as part of NASA's ambitious Dragonfly mission.Laurel Today

Lawrence Livermore National Laboratory (LLNL) has provided an advanced gamma-ray spectrometer to the Johns Hopkins Applied Physics Laboratory (APL) for NASA's Dragonfly mission to explore Saturn's moon Titan. The spectrometer will be part of the Dragonfly Gamma-ray and Neutron Spectrometer (DraGNS) instrument that will help analyze the chemical composition of Titan's surface as the rotorcraft lander explores the moon's unique landscape.

Why it matters

Titan is the only moon in our solar system with a dense atmosphere and stable surface liquids, making it a compelling target for astrobiology research into prebiotic chemistry. The Dragonfly mission aims to study Titan's complex organic chemistry and determine if conditions in the past could have supported the development of life.

The details

The gamma-ray spectrometer utilizes a high-resolution germanium crystal to precisely identify elements on Titan's surface. LLNL has decades of experience developing this technology for planetary science missions, including previous instruments for NASA's MESSENGER mission to Mercury and the upcoming Psyche mission to an asteroid. For Dragonfly, the spectrometer had to be rigorously tested to withstand the challenges of the six-year journey, Titan's extreme cold temperatures, and the stresses of launch and atmospheric entry.

  • The Dragonfly mission is scheduled to launch in 2028.
  • Dragonfly is set to arrive at Titan in 2034.

The players

Lawrence Livermore National Laboratory (LLNL)

A U.S. Department of Energy national laboratory that has decades of experience developing high-resolution gamma-ray spectroscopy instruments for planetary science missions.

Johns Hopkins Applied Physics Laboratory (APL)

The lead organization for NASA's Dragonfly mission, responsible for building the Dragonfly Gamma-ray and Neutron Spectrometer (DraGNS) that will include the LLNL-provided gamma-ray spectrometer.

NASA

The U.S. space agency leading the Dragonfly mission to explore Saturn's moon Titan.

Morgan Burks

An LLNL physicist who worked on the development of the gamma-ray spectrometer for the Dragonfly mission.

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What they’re saying

“We expect the surface of Titan to be comprised mainly of mixtures of water-ice with hydrocarbons and ammonia, but it may contain many surprises as well. In particular, we're interested in whether chemical processes in Titan's past could have formed molecules like amino acids or proteins.”

— Morgan Burks, LLNL physicist

What’s next

The Dragonfly Gamma and Neutrons Spectrometer, including the LLNL-provided gamma-ray spectrometer, is currently undergoing integration and testing in preparation for the mission's launch in 2028.

The takeaway

The Dragonfly mission to Titan represents one of NASA's most ambitious planetary exploration efforts, and the advanced gamma-ray spectrometer developed by LLNL will play a crucial role in helping scientists understand the chemical composition and potential prebiotic chemistry of this unique world in the outer solar system.