The Latest Update on America's Next Saturn-bound Robotic Explorer...

NASA / Johns Hopkins APL / Ed Whitman

NASA’s Dragonfly Rotorcraft Gets Decked Out, Tested (News Release)

NASA’s Dragonfly rotorcraft is beginning to take shape – literally – with the delivery of the panels that make up the rotorcraft lander’s body. Built from ultra‑lightweight honeycomb panels designed at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, and manufactured by Lockheed Martin Space in Denver, the primary structure is specially designed for the challenges of flight on Saturn’s largest moon Titan.

Each panel uses aluminum face sheets only 0.01 inches thick — much thinner than typically used on spacecraft — to meet the strict mass limits required for powered flight through Titan’s atmosphere. But while the entire frame weighs just 230 pounds, it’s also durable. “The structure is remarkably light and yet strong enough to withstand the intense forces of launch and the entry into Titan’s atmosphere,” said Gordon Maahs, the Dragonfly mechanical systems engineer from APL. “We’ve never built anything like it.”

In early April, the APL team began assembling the fuselage and integrating key structural elements, including the mounting plate and cover for Dragonfly’s power source, a multi-mission radioisotope thermoelectric generator, which will be installed just before launch. Engineers also performed a fit check of the top deck, which carries components of Dragonfly’s telecommunications system.

In May, vibration and static-load tests will be performed on the structure to measure Dragonfly’s response to the dynamic forces of launch (from Earth) and atmospheric entry and landing (on Titan). “The lander is starting to look like Dragonfly,” said Hunter Reeling, Dragonfly’s thermal mechanical integration and test lead from APL. “We’re excited to see the designs coming to life.”

Parachute passes test

In February, the mission achieved a significant milestone with the successful completion of another series of parachute drop tests, key to the development of the parachute decelerator elements of the entry, descent and landing (EDL) system that will decelerate the Dragonfly lander as it descends into Titan’s atmosphere.

Led by Airborne Systems of Santa Ana, California, in coordination with NASA’s Langley Research Center in Hampton, Virginia, and NASA’s Ames Research Center in California’s Silicon Valley, and conducted in Eloy, Arizona, the test marked the first trials of a full-scale parachute system, including both the drogue and main parachutes. These tests on Earth are designed to closely replicate the environment that Dragonfly will encounter within Titan’s atmosphere.

The team plans to conduct another series of similar design-qualification tests in October before building the flight systems.

Preparing to sample Titan’s surface

Dragonfly’s portable chemistry lab, which will study Titan’s surface composition, is in the final stages of integration and testing at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. This payload, called the Dragonfly Mass Spectrometer (DraMS), includes two systems for releasing molecules from samples that Dragonfly will collect: laser desorption and gas chromatography. Once released, the molecules will flow to a mass spectrometer, which will identify them by their masses.

On April 15, engineers completed testing of the laser system, which was integrated within DraMS in February. Using a sample with known compounds, the team confirmed that the laser and mass spectrometer can identify the chemicals in a relevant sample, even in very small amounts.

Over the next few weeks, engineers will install the gas chromatography system into DraMS and carry out similar tests. The gas chromatography system, provided by CNES (Centre National d’Etudes Spatiales), works by heating a sample, releasing molecules, and separating them before analysis. Together, the laser- and gas-analysis systems will help Dragonfly detect compounds across a wide range of sizes.

Dragonfly is scheduled to launch no earlier than 2028 for a six-year voyage to Saturn’s moon Titan, where it will spend three years flying from location to location to explore a range of sites to study the chemistry, geology, and atmosphere of the Earthlike moon and ultimately advance our understanding of life’s chemical origins.

Source: NASA.Gov

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Airborne Systems North America

New Dragonfly hardware! Last week, leaders from NASA visited our facilities to see the aeroshell and fuel tanks for @NASASolarSystem's Dragonfly, a partnership w/@JHUAPL.

These technologies are critical for the nuclear-powered rotorcraft to safely get to Saturn's moon, Titan. pic.twitter.com/RmKeGVmWti

— Lockheed Martin Space (@LMSpace) April 20, 2026

America's Next Great Observatory Is Ready to Fly...

NASA / Scott Wiessinger

NASA Targets Early September for Roman Space Telescope Launch (News Release)

NASA’s Nancy Grace Roman Space Telescope team is now targeting as soon as early September 2026 for launch, ahead of the agency’s commitment to flight no later than May 2027.

“Roman’s accelerated development is a true success story of what we can achieve when public investment, institutional expertise, and private enterprise come together to take on the near-impossible missions that change the world,” said NASA Administrator Jared Isaacman, who announced the update at a news conference on April 21 at the agency’s Goddard Space Flight Center in Greenbelt, Maryland.

Roman will pair a large field of view with crisp infrared vision to survey deep, vast swaths of sky. While the mission was designed with dark energy, dark matter, and exoplanets in mind, Roman’s unprecedented observational capability will offer practically limitless opportunities for astronomers to explore all kinds of cosmic topics.

By the end of its five-year primary mission, Roman is expected to amass a 20,000-terabyte data archive. Scientists can draw on it to identify and study 100,000 exoplanets, hundreds of millions of galaxies, billions of stars, and rare objects and phenomena — including some that astronomers have never witnessed before.

Roman will launch on a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. NASA and SpaceX will share more information about a specific launch date, and the agency will continue to share updates concerning prelaunch preparations as new information becomes available.

The Nancy Grace Roman Space Telescope is managed at NASA’s Goddard Space Flight Center, with participation by NASA’s Jet Propulsion Laboratory and Caltech/IPAC in Southern California, the Space Telescope Science Institute (STScI) in Baltimore, and scientists from various research institutions.

Source: NASA.Gov

The Latest Discovery in the Search for Life on the Red Planet...

NASA / JPL - Caltech / MSSS

NASA’s Curiosity Finds Organic Molecules Never Seen Before on Mars (News Release)

After years of lab work, the results are in: A rock that NASA’s Curiosity Mars rover drilled and analyzed in 2020 includes the most diverse collection of organic molecules ever found on the Red Planet. Of the 21 carbon-containing molecules identified in the sample, seven of them were detected for the first time on Mars.

Scientists have no way of knowing whether these organic molecules were created by biologic or geologic processes — either path is possible — but their discovery renewed confirmation that ancient Mars had the right chemistry to support life. What’s more, the molecules join a growing list of compounds known to be preserved in rocks even after billions of years of exposure on Mars to radiation, which can break down these molecules over time.

The findings are detailed in a new paper published on Tuesday in Nature Communications.

The rock sample, nicknamed “Mary Anning 3” after an English fossil collector and paleontologist, was collected on a part of Mount Sharp covered by lakes and streams billions of years ago. This oasis surged and dried up multiple times in the planet’s ancient past, eventually enriching the area with clay minerals, which are especially good at preserving organic compounds — carbon-containing molecules that are the building blocks of life and are found throughout the Solar System.

Among the newly-identified molecules is a nitrogen heterocycle, a ring of carbon atoms that includes nitrogen. This kind of molecular structure is considered a predecessor to RNA and DNA, two nucleic acids that are key to genetic information.

“That detection is pretty profound because these structures can be chemical precursors to more complex nitrogen-bearing molecules,” said the paper’s lead author, Amy Williams of the University of Florida in Gainesville. “Nitrogen heterorcycles have never been found before on the Martian surface or confirmed in Martian meteorites.”

Another exciting discovery was benzothiophene, a carbon- and sulfur-bearing molecule that’s been found in many meteorites. These meteorites, along with the organic molecules within them, are thought by some scientists to have seeded prebiotic chemistry across the early Solar System.

Martian chemistry

The new paper complements last year’s finding of the largest organic molecules ever discovered on Mars: long-chain hydrocarbons, including decane, undecane and dodecane.

“This is Curiosity and our team at their best. It took dozens of scientists and engineers to locate this site, drill the sample, and make these discoveries with our awesome robot,” said the mission’s project scientist, Ashwin Vasavada of NASA’s Jet Propulsion Laboratory in Southern California. “This collection of organic molecules once again increases the prospect that Mars offered a home for life in the ancient past.”

Both sets of findings were made with a sophisticated minilab called Sample Analysis at Mars (SAM), located in Curiosity’s belly. A drill on the end of the rover’s robotic arm pulverizes a carefully selected rock sample into powder and then trickles it into SAM, where a high-temperature oven heats the material, releasing gases that instruments in the lab analyze to reveal the rock’s composition.

In addition, SAM can perform “wet chemistry,” dropping samples into a small cup of solvent. The resulting reactions can break apart larger molecules that would be difficult to detect and identify otherwise. While the instrument has several such cups, only two contain tetramethylammonium hydroxide (TMAH), a powerful solution reserved for the highest-value samples.

The Mary Anning 3 sample was the first to be exposed to TMAH.

To verify TMAH’s reactions with otherworldly materials, the paper’s authors also tested the technique on Earth with a piece of the Murchison meteorite, one of the most studied meteorites of all time. More than 4 billion years old, Murchison contains organic molecules that were seeded throughout the early Solar System. A Murchison sample exposed to TMAH was found to break much larger molecules into some of the ones seen in Mary Anning 3, including benzothiophene.

That result verifies that the Martian molecules found in Mary Anning 3 could have been generated from the breakdown of even more complex compounds relevant to life.

Curiosity recently used its second and final TMAH cup while exploring weblike boxwork ridges, which were formed by ancient groundwater. The mission team will be analyzing those results for a future peer-reviewed paper.

Trailblazing for future missions

Built by NASA’s Goddard Space Flight Center in Greenbelt, Maryland, SAM is based on larger, commercial-grade lab instruments. Getting such complex equipment into the rover required engineers to dramatically shrink it down and develop a way for it to run on less power. Scientists had to learn how to heat up SAM’s oven more slowly over longer periods in order to conduct some of these experiments.

“It was a feat just figuring out how to conduct this kind of chemistry for the first time on Mars,” said Charles Malespin, the instrument’s principal investigator at NASA Goddard and a study coauthor. “But now that we’ve had some practice, we’re prepared to run similar experiments on future missions.”

In fact, NASA Goddard has provided several components, including the mass spectrometer, for a next-generation version of SAM, called the Mars Organic Molecular Analyzer, for ESA’s (European Space Agency) Rosalind Franklin Mars rover. A similar instrument, the Dragonfly Mass Spectrometer, will explore Saturn’s moon Titan on NASA’s Dragonfly rotorcraft. Both instruments will be able to perform wet chemistry with the TMAH solvent.

Source: NASA.Gov

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NASA / JPL - Caltech / MSSS

The Latest Update on Humanity's Twin Interstellar Probes...

Caltech / NASA - JPL

NASA Shuts Off Instrument on Voyager 1 to Keep Spacecraft Operating (News Release)

On April 17, engineers at NASA’s Jet Propulsion Laboratory (JPL) in Southern California sent commands to shut down an instrument aboard Voyager 1 called the Low-energy Charged Particles experiment, or LECP. The nuclear-powered spacecraft is running low on power, and turning off the LECP is considered the best way to keep humanity’s first interstellar explorer going.

The LECP has been operating almost without interruption since Voyager 1 launched in 1977 — almost 49 years. It measures low-energy charged particles, including ions, electrons and cosmic rays originating from our Solar System and galaxy. The instrument has provided critical data about the structure of the interstellar medium, detecting pressure fronts and regions of varying particle density in the space beyond our heliosphere.

The twin Voyagers are the only spacecraft that are far enough from Earth to provide this information.

Like Voyager 2, Voyager 1 relies on a radioisotope thermoelectric generator, a device that converts heat from decaying plutonium into electricity. Both probes lose about 4 watts of power each year. After almost a half-century in space, power margins have grown razor thin, requiring the team to conserve energy by shutting off heaters and instruments while making sure the spacecraft don’t get so cold that their fuel lines freeze.

During a routine, planned roll maneuver on February 27, Voyager 1’s power levels fell unexpectedly. Mission engineers knew that any additional drop in power could trigger the spacecraft’s undervoltage fault protection system, which would shut down components on its own to safeguard the probe, requiring recovery by the flight team — a lengthy process that carries its own risks.

The Voyager team needed to act first.

“While shutting down a science instrument is not anybody’s preference, it is the best option available,” said Kareem Badaruddin, Voyager mission manager at JPL. “Voyager 1 still has two remaining operating science instruments — one that listens to plasma waves and one that measures magnetic fields. They are still working great, sending back data from a region of space no other human-made craft has ever explored. The team remains focused on keeping both Voyagers going for as long as possible.”

Far-out plan

The choice of which instrument to turn off next wasn’t made in the heat of the moment. Years ago, the Voyager science and engineering teams sat down together and agreed on the order in which they would shut off parts of the spacecraft while ensuring that the mission can continue to conduct its unique science. Of the 10 identical sets of instruments that each spacecraft carries, seven have been shut off so far.

For Voyager 1, the LECP was next on that list. The team shut off the LECP on Voyager 2 in March 2025.

Because Voyager 1 is more than 15 billion miles (25 billion kilometers) from Earth, the sequence of commands to shut down the instrument will take 23 or so hours to reach the spacecraft, and the shutdown process itself will take about three hours and 15 minutes to complete. One part of the LECP — a small motor that spins the sensor in a circle to scan in all directions — will remain on. It uses little power (0.5 watts), and keeping it running gives the team the best chance of being able to turn the instrument back on someday if they find extra power.

What comes next

Engineers are confident that shutting down the LECP will give Voyager 1 about a year of breathing room. They are using the time to finalize a more ambitious energy-saving fix for both Voyagers that they call “the Big Bang,” which is designed to further extend Voyager operations. The idea is to swap out a group of powered devices all at once — hence the nickname — turning some things off and replacing them with lower-power alternatives to keep the spacecraft warm enough to continue gathering science data.

The team will implement the Big Bang on Voyager 2 first, which has a little more power to spare and is closer to Earth, making it the safer test subject. Tests are planned for May and June 2026. If they go well, the team will attempt the same fix on Voyager 1 no sooner than July.

If the Big Bang works, there is even a chance that Voyager 1’s LECP could be switched back on.

Source: NASA.Gov