Fuel Savings Double Potential Lifetime for NASA’s Roman Mission (News Release)
The results are in: NASA’s Nancy Grace Roman Space Telescope’s very accurate first mid-course correction, along with other fuel savings, are expected to more than double the mission’s potential operational lifetime.
“As a result of exquisite planning by our orbital dynamics team, brilliant execution by the operations team, and a precise launch from SpaceX, Roman has fuel for at least 22 years of potential science operations,” said Jamie Dunn, center director at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
The added life comes from the first mid-course correction’s accuracy, extra fuel added prior to launch, and anticipated results from Roman’s upcoming second mid-course correction and orbital insertion.
Original projected mission lifetime: 10 years
Roman was designed for a five-year primary mission, plus a five-year extended mission — a 10-year fuel budget in total. Because fuel is the observatory’s primary consumable resource, any fuel savings could enable additional years of observations beyond the 10-year design life.
First burn results: +4 years
The Roman team executed its first burn on August 31 to adjust the observatory’s trajectory towards its final orbit and has since been analyzing its effects on the mission. In addition to being executed with more than 99% accuracy, the maneuver required less than 10% of the fuel that the team had budgeted for: about 40 pounds (18 kilograms), down from the allocation of 441 pounds (200 kilograms).
Bonus fuel at launch: +4 years
Extra fuel loaded at launch could enable roughly four more years on top of that. This launch surplus exists because Roman launched lighter than planned: The team had budgeted fuel using a conservative maximum weight of 21,605 pounds (9,800 kilograms), well above the observatory’s actual weight of 17,760 pounds (8,056 kilograms). The lighter spacecraft needed less fuel for the mid-course correction, and its lower weight also left room to fill the propellant tanks beyond what the 10-year mission alone required.
“A spacecraft’s mass changes throughout the design and build process, so we base the propellant budget on a set maximum value so we won’t come up short,” said Alison Rao, the Roman propulsion lead at NASA Goddard. “We track the propellant needed based on actual mass throughout integration and testing as well, to make sure we have wiggle room. Since Roman’s was lower than we budgeted for, we were able to fill the propellant tanks to their capacity rather than only filling them as much as we needed to for the 10-year requirement.”
Upcoming burn, orbital insertion: +4 years expected
Thanks to the first mid-course correction’s success, the second burn is expected to be very small and save even more fuel. The team can also wait longer to conduct this follow-up burn, now planned for later this month. It will give the observatory the last bit of energy required to achieve its targeted position prior to maneuvering into its final orbit at L2, approximately 100 days after launch, or about early December.
According to current projections, both maneuvers will use less fuel than planned, potentially saving even more for future science.
Once in orbit around L2, Roman will only require periodic station-keeping burns roughly every 28 days.
NASA’s Dark Universe-Seeking Nancy Grace Roman Space Telescope Launches (News Release)
Now on a three-month, million-mile journey to its final orbit, NASA’s Nancy Grace Roman Space Telescope will soon reveal the Universe’s darkest secrets. The mission launched at 7:26 a.m. EDT on Sunday, aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.
Roman pairs a large field of view with crisp infrared vision to explore vast swaths of the sky and probe deeply into cosmic history. This flagship mission will help astronomers explore dark matter, dark energy, and worlds outside of our Solar System, known as exoplanets. Its surveys will support a broad range of research extending far beyond the mission’s main science goals.
“Roman is exactly the kind of success story we want to see across NASA,” said NASA Administrator Jared Isaacman. “Delivered ahead of schedule and on budget, this mission reflects more than a decade of dedication from the NASA workforce and our industry partners. Now, Roman will give us a new atlas of the Universe, push the boundaries of discovery, and demonstrate what is possible when America’s space program pairs bold ambition with disciplined execution.”
The ground control team at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, began receiving telemetry data from Roman seven minutes after launch. The Falcon Heavy rocket performed as expected, separating from the observatory 31 minutes into the flight. After separating from the center core, the rocket’s boosters safely returned to the launch site for refurbishment.
“Roman will be a discovery machine that will bring us closer than ever before to answering humanity’s most profound questions about our cosmic history,” said Nicky Fox, associate administrator for the Science Mission Directorate at NASA Headquarters in Washington. “With its large field of view and fast survey speeds, Roman will usher us into a new era of discovery and make the invisible visible, setting the foundation for humanity’s search for life beyond our Solar System.”
During launch and early orbit, Roman uses the Near Space Network’s ground stations and relay satellites to exchange tracking, telemetry and command data with ground controllers. About 70 minutes after launch, the Deep Space Network takes over communications and guides Roman towards the second Sun-Earth Lagrange point, or L2, about one million miles from Earth. Roman connects to that network through the Canberra Deep Space Communication Complex in Australia first.
Approximately six hours later the data relay will transfer to the Madrid Deep Space Communication Complex in Spain and then to the Goldstone Deep Space Communication Complex in California, ensuring continuous contact with Roman throughout its journey.
The Roman team also confirmed successful deployment of the observatory’s solar panels and lower instrument sun shade an hour and 23 minutes after launch. Within the upcoming days, Roman’s high-gain antenna and visor-like deployable aperture cover will deploy, ground controllers will initiate the first of two-mid-course corrections, and the Coronagraph Instrument will power on. This instrument will demonstrate the technology that future missions like NASA’s Habitable Worlds Observatory concept could use to image Earth-like planets in the search for life in the Universe.
Roman’s Coronagraph will take a giant step in that direction by snapping pictures of Jupiter-like planets.
A few weeks into Roman’s voyage, its primary instrument, the Wide Field Instrument, will activate. This 300-megapixel infrared camera has 18 4K detectors, each about the size of a saltine cracker. These detectors collect photons of light that will be decoded into crisp cosmic panoramas.
Thanks to the observatory’s rigid design and stable optical performance, it will rapidly scan the sky without needing substantial time between separate observations. The Roman telescope is designed to survey the Universe a thousand times faster than NASA’s Hubble Space Telescope.
Throughout the rest of Roman’s three-month commissioning period, scientists will run the instruments through a series of calibrations and tests. NASA anticipates releasing Roman’s first images by early 2027.
Roman will send back 1.4 terabytes of data every day, the highest data rate of any NASA astrophysics mission, so far. Machine learning, artificial intelligence, and citizen scientists will help sift through it and flag significant findings, which astronomers can then study.
“We’ve never been able to view the Universe with eyes like Roman’s before,” said Julie McEnery, Roman’s senior project scientist at NASA Goddard. “There’s no telling what more we’ll know and have seen by this time next year.”
Roman is the fourth primary mission that NASA has launched on a Falcon Heavy rocket. Earlier this year, the agency’s Launch Services Program worked with SpaceX to accelerate the launch date to accommodate the space telescope’s early completion.
The telescope is managed at NASA Goddard with participation by the agency’s Jet Propulsion Laboratory in Southern California; Caltech/IPAC in Pasadena, California; the Space Telescope Science Institute in Baltimore; and a team of scientists from various research institutions. The primary industrial partners are BAE Systems Inc., L3Harris Technologies, and Teledyne Scientific & Imaging. Contributions to Roman are also made by ESA, JAXA, the French space agency CNES (Centre National d’Études Spatiales), and the Max Planck Institute for Astronomy in Germany.
Roman Space Telescope Transport from PHSF to LC-39A (Photo Release - August 25)
NASA’s Nancy Grace Roman Space Telescope, encapsulated in its payload fairing, travels from the Payload Hazardous Servicing Facility to the SpaceX hangar at Launch Complex 39A at NASA’s Kennedy Space Center on Tuesday, August 25, 2026, ahead of mating to a SpaceX Falcon Heavy rocket.
Roman’s science instruments are designed to help researchers understand dark energy, the mysterious force accelerating the Universe’s expansion. The observatory will also map how galaxies form, cluster and evolve by tracing the influence of dark matter.
Liftoff from NASA Kennedy is targeted for no earlier than Sunday, August 30, 2026.
Roman Space Telescope Encapsulation (Photo Release - August 21)
Teams inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida encapsulate the agency’s Nancy Grace Roman Space Telescope within the payload fairing on Friday, August 21, 2026, ahead of mating to a SpaceX Falcon Heavy rocket.
Encapsulation shields the spacecraft during rollout, ascent, and the early phases of flight.
Roman will investigate dark energy and dark matter, conduct a statistical census of planetary systems, and enable a broad range of additional astrophysics research.
Liftoff from Launch Complex 39A at Kennedy is targeted for no earlier than Sunday, August 30, 2026.
Launch Dress Rehearsal Complete Ahead of NASA Roman Space Telescope Liftoff (News Release)
The team preparing to launch NASA’s Nancy Grace Roman Space Telescope completed a mission dress rehearsal on Thursday from Florida’s space coast.
During the exercise, Roman teams ran through a full end-to-end simulation of launch-day operations leading up to liftoff. They practiced powering up the spacecraft, simulated fueling operations for the SpaceX Falcon Heavy rocket, conducted mock weather briefings, and practiced troubleshooting a variety of scenarios.
This rehearsal is a standard part of preparation and contributes to mission success, especially since NASA missions often involve unique requirements specific to a given spacecraft. During the simulation, the team was on console at NASA and SpaceX facilities at Cape Canaveral Space Force Station and SpaceX facilities at the agency’s Kennedy Space Center, where they tested and demonstrated proficiency on everything from communications to mission systems.
Completing the rehearsal brings the team one step closer to sending Roman on its mission to address essential questions about dark energy, planets outside our Solar System, and infrared astrophysics. By conducting wide-field surveys, the telescope will explore the Universe’s structure, evolution and composition.
NASA and SpaceX are targeting launch no earlier than 7:26 a.m. EDT on Sunday, August 30, from Launch Complex 39A at Kennedy aboard a SpaceX Falcon Heavy.
NASA’s Roman Telescope to Carry 1.35 Million Names to Deep Space (News Release)
On July 27, technicians at NASA’s Kennedy Space Center in Florida installed a memory card containing 1,350,144 names as part of a commemorative plaque on the Nancy Grace Roman Space Telescope. The names were submitted by people globally, including astronauts from Artemis II and Artemis III. The memory card will travel with the Roman observatory to the Sun-Earth Lagrange point 2, or L2, about one million miles from Earth, where the Sun’s and Earth’s gravity balance out.
Roman is named after Dr. Nancy Grace Roman, NASA’s first chief astronomer and one of the architects of the agency’s modern science program. Roman championed space-based observatories that could study the Universe from above Earth’s hazy atmosphere while making their data broadly available to the scientific community.
NASA and SpaceX are targeting launch for no earlier than 7:26 a.m. EDT on Sunday, August 30 aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at Kennedy.
NASA Fuels Roman Space Telescope for Late August Launch (News Release)
Technicians completed fueling NASA’s Nancy Grace Roman Space Telescope, bringing it an important step closer to launch. On July 25, the team completed operations that carefully loaded 290 gallons of hydrazine fuel into the observatory at the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida.
After launch and separation from the rocket, Roman will use this onboard propellant to perform maneuvers as it travels to Sun-Earth Lagrange point 2, or L2, located about one million miles from Earth. There, about four times the distance to the Moon, it will have an ideal home for astronomy.
Roman will use its propellant to power two types of thrusters that help it stay in its planned orbit around L2 and ensure the solar array panels face the Sun, which is the observatory’s main source of power throughout the mission. Roman has a five-year primary mission, and potentially enough fuel to support an additional five years for an extended mission. The Roman team recently cleaned and checked out the six solar array panels to prepare them for launch.
Researchers are eager to study thousands of exoplanets that Roman will discover, to learn how closely they resemble Earth. They will also use Roman to study the mystery of dark energy and why it’s causing the Universe to expand faster over time.
Now that fueling is complete, technicians will soon attach Roman to a device that secures to the rocket’s top stage. After that, Roman will be encapsulated within the rocket’s protective shell, known as a payload fairing. The payload fairing protects the spacecraft from aerodynamic forces and heat during ascent.
Launching nine months ahead of schedule, NASA and SpaceX are targeting liftoff for no earlier than 7:26 a.m. EDT on Sunday, August 30, aboard a SpaceX Falcon Heavy from Launch Complex 39A at Kennedy.
NASA’s Next-Generation Telescope Arrives in Florida Ahead of Launch (News Release)
NASA’s Nancy Grace Roman Space Telescope arrived at the agency’s Kennedy Space Center in Florida on June 21, marking the start of final prelaunch preparations before liftoff later this summer.
After teams completed integration and testing on the observatory at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, they loaded Roman into a protective and environmentally-controlled transportation container and drove it to the port of Baltimore. There, the agency’s Pegasus barge safely transported the nearly 18,000-pound (8,200-kilogram) spacecraft down the coast of the Atlantic Ocean to its new home in Florida at the Payload Hazardous Servicing Facility, which recently completed upgrades to prepare for Roman’s arrival.
Technicians met the telescope at NASA Kennedy’s turn basin wharf and offloaded the trailer carrying the observatory from the barge, where they connected it to a truck that transported Roman to the servicing facility.
When the spacecraft arrives at the facility, technicians will complete initial cleaning outside the building before moving the shipping container into the facility’s airlock. Once in the airlock, they will perform additional cleaning to reduce any remaining contaminants from the trip. The facility’s air filtration system will also scrub the air until the team can safely open the inner door.
Once inside the facility, technicians will unbox the spacecraft, raise it to a vertical position in the airlock, and move it into the clean room.
On Monday, June 22, technicians plan to remove the cover from the transport container and move Roman into the high bay. Later, technicians will use large cranes to move Roman to its work platform - called the Pantheon. During the observatory’s time at the processing facility, technicians will perform several tasks, including testing the six solar panels and inspecting Roman’s insulation and thermal blankets to ensure that the observatory is fully protected and flight ready.
Specially-trained team members will load about 290 gallons of hydrazine fuel into the spacecraft’s tanks.
NASA is targeting launch no earlier than Sunday, August 30, on a SpaceX Falcon Heavy rocket from Launch Complex 39A at Kennedy. This puts Roman eight months ahead of schedule.
After launch, Roman will travel to the second Sun-Earth Lagrange point, or L2. There, it will make observations that give astronomers the chance to study an incredible number of new objects. Roman’s wide field of view and rapid survey capabilities will reveal billions of galaxies, hundreds of thousands of new exoplanets, hundreds of blackholes, and will provide vast volumes of daily data for astronomers to study.
The observatory will also map how common different kinds of planets are in our galaxy and help answer big questions about the Universe, like what’s causing its rapid expansion and what distant worlds and cosmic objects look like in infrared light. In addition to its main instrument, which features a 300-megapixel camera, Roman will demonstrate technology designed to block starlight to directly image exoplanets and planet-forming disks.
Alongside Roman, the Pegasus barge also carried a weather cover for the Artemis III SLS(Space Launch System) core stage. The cover will protect the stage thermal systems while it sits at Launch Complex 39B in its short stack configuration. Because schedules aligned, the barge was able to transport NASA’s next flagship astrophysics mission together with the Artemis hardware, maximizing resources to support missions across the agency during the Golden Age of innovation and exploration.
She's nearly home! NASA's brand new Nancy Grace Roman Telescope has officially been delivered to Kennedy Space Center to complete final fueling and integration in preparation for launch on Falcon Heavy later this year. pic.twitter.com/ZqLWQ9GtWd
Hello, World! NASA Shares New Home for Roman Space Telescope Updates (News Release - June 3)
We’re kicking off the inaugural Roman blog post with a launch update: NASA’s Nancy Grace Roman Space Telescope is officially slated to launch on August 30, eight months ahead of schedule and even earlier than previously targeted.
With less than three months to go, the Roman team is now finishing up final tasks. Engineers are currently packing Roman up for a voyage from NASA’s Goddard Space Flight Center in Greenbelt, Maryland, down to the agency’s Kennedy Space Center in Florida later this month.
Once at Kennedy, Roman will move into the Payload Hazardous Servicing Facility, where it will undergo a thorough inspection to verify that all of the observatory’s components traveled well. In the weeks leading up to launch, engineers will perform powered testing and launch rehearsals, load about 290 gallons (roughly 1,100 liters) of hydrazine fuel into the tanks, and install the observatory on the adapter for the SpaceX Falcon Heavy rocket that will propel it to its destination in space: the second Sun-Earth Lagrange point, or L2, which is about four times farther away than the Moon is from Earth.
Next, Roman will be encapsulated in a protective fairing, or nose cone, which will shield the telescope during liftoff and its journey through the atmosphere. Roman will then move to a hangar for integration with the SpaceX Falcon Heavy rocket before rolling out to Launch Complex 39A at NASA Kennedy.
All this work will culminate in Roman delivering never-before seen views of the Universe. The observatory 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 planets outside our Solar System in mind, Roman’s unprecedented observational capability will offer practically limitless opportunities for astronomers to explore a broad range of cosmic phenomena.
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.
NASA Dragonfly’s integration and testing – the activities involved in assembling the mission’s rotorcraft lander and testing it for the rigors of launch and extreme conditions of space – is officially underway in clean rooms and control rooms at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland.
In partnership with teams across government, industry and academia, APL is building the car-sized, nuclear-powered drone for NASA. Dragonfly is scheduled to launch no earlier than 2028 for a six-year voyage to Saturn’s moon Titan, where it will explore a range of diverse sites to study the chemistry, geology and atmosphere of the terrestrial moon and ultimately advance our understanding of life’s chemical origins.
Primary activities during the first weeks of this effort included power and functional testing on two critical components: the Integrated Electronics Module (IEM) and the Power Switching Units (PSUs). Think of the IEM as Dragonfly’s “brain,” containing the spacecraft’s core avionics (such as command and data handling, guidance and navigation, and communications) in a single space-saving and power-efficient box. The IEM and both PSUs were connected to Dragonfly’s wiring system and passed their first power-service checks.
“This milestone essentially marks the birth of our flight system,” said Elizabeth Turtle, Dragonfly principal investigator from APL. “Building a first-of-its kind vehicle to fly across another ocean world in our Solar System pushes us to the edge of what’s possible, but that’s exactly why this stage is so exciting. The team is doing an outstanding job, and every component we install and every test we run brings us one step closer to launching Dragonfly to Titan.”
Much work has led up to this point. The aeroshell and cruise-stage assemblies are moving forward with integration and testing at Lockheed Martin Space in Littleton, Colorado. The team completed a thorough aerodynamic test series in the wind tunnels of NASA’s Langley Research Center in Hampton, Virginia. Testing continues in the Titan Chamber at APL of the foam coating that will insulate the rotorcraft from Titan’s frigid temperatures.
The science payload is coming together at locations around the country and internationally. The flight radio has been delivered, and additional flight systems are scheduled for delivery and testing within the next six months.
Dragonfly integration and testing will continue at APL through this year and into early 2027, when system-level testing is planned at Lockheed Martin. Late next year, the lander returns to APL for final space-environment testing before heading to NASA’s Kennedy Space Center in Florida in spring 2028 for launch aboard a SpaceX Falcon Heavy rocket that summer.
“Starting integration and testing is a huge milestone for the Dragonfly team,” said Annette Dolbow, the Dragonfly integration and test lead at APL. “We’ve spent years designing and refining this amazing rotorcraft on computer screens and in laboratories, and now we get to bring all those elements together and transform Dragonfly into an actual flight system.”
NASA JPL Shakes Things Up Testing Future Commercial Lunar Spacecraft (News Release)
As Firefly Aerospace prepares to follow its successful soft landing on the Moon, an engineering model for its next lander is being put through its paces.
The same historic facilities that some 50 years ago prepared NASA’s twin Voyager probes for their ongoing interstellar odyssey are helping to ready a towering commercial spacecraft for a journey to the Moon. Launches involve brutal shaking and astonishingly loud noises, and testing in these facilities mimics those conditions to help ensure that mission hardware can survive the ordeal. The latest spacecraft to get this treatment are Firefly Aerospace’s Blue Ghost Mission 2 vehicles, set to launch to the Moon’s far side next year.
The Environmental Test Laboratory at NASA’s Jet Propulsion Laboratory in Southern California is where dozens of robotic spacecraft have been subjected to powerful jolts, extended rattling, high-decibel blasts of sound, and frigid and scorching temperatures, among other trials. Constructed in the 1960s and modernized over the years, the facilities have prepared every NASA spacecraft built or assembled at JPL for the rigors of space, from the Ranger spacecraft of the dawning Space Age to the Perseverance Mars rover to Europa Clipper, currently en route to the Jupiter system.
That legacy, and the decades of accumulated experience of the Environmental Test Laboratory team at JPL, is also supporting industry efforts to return to the Moon as part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and its Artemis campaign, which will bring astronauts back to the lunar surface.
In recent months, a full-scale model of Firefly’s uncrewed Blue Ghost Mission 2 spacecraft was put through its paces by the experts in the lab’s vibration and acoustic testing facilities. Lessons learned with this model, called a structural qualification unit, will be applied to upcoming testing of the spacecraft that will fly to the Moon as early as 2026 through NASA’s CLPS.
“There’s a lot of knowledge gained over the years, passed from one generation of JPL engineers to another, that we bring to bear to support our own missions as well as commercial efforts,” said Michel William, a JPL engineer in the Environmental Test Laboratory who led the testing. “The little details that go into getting these tests right — nobody teaches you that in school, and it’s such a critical piece of space launch.”
Testing just right
The Environmental Test Laboratory team led environmental testing for Firefly’s Blue Ghost Mission 1 lander in 2024, and seeing the spacecraft achieve a soft Moon landing in March was a point of pride for them. Firefly’s next CLPS delivery debuts a dual-spacecraft configuration and hosts multiple international payloads, with the company’s Elytra Dark orbital vehicle stacked below the Blue Ghost lunar lander. Standing 22 feet (6.9 meters) high, the full structure is more than three times as tall as the Mission 1 lander.
This fall, a structural qualification model of the full stack was clamped to a “shaker table” inside a clean room at JPL and repeatedly rattled in three directions while hundreds of sensors monitored the rapid movement. Then, inside a separate acoustic testing chamber, giant horns blared at it from openings built into the room’s 16-inch-thick (41-centimeter-thick) concrete walls. The horns use compressed nitrogen gas to pummel spacecraft with up to 153 decibels, noise loud enough to cause permanent hearing loss in a human.
Each type of test involves several increasingly intense iterations. Between rounds, JPL’s dynamics environment experts analyze the data to compare what the spacecraft experienced to computer model predictions. Sometimes a discrepancy leads to hardware modifications, sometimes a tweak to the computer model. Engineers and technicians are careful to push the hardware, but not too far.
“You can either under-test or over-test, and both are bad,” William said. “If you over-test, you can break your hardware. If you under-test, it can break on the rocket. It’s a fine line.”
Since the model isn’t itself launching to the Moon, Firefly’s recent Environmental Test Laboratory visit didn’t include several types of trials that are generally completed only for flight hardware. A launch pad-bound spacecraft would undergo electromagnetic testing to ensure that signals from its electronic parts don’t interfere with one another. And, in what is probably the most well-known environmental test, flight-bound hardware is baked or chilled at extreme temperatures in a thermal vacuum chamber from which all of the air is sucked out.
The multiple thermal vacuum chamber facilities at JPL include two large historic “space simulators” built within NASA’s first few years of existence: a chamber that’s 10 feet in diameter and another that’s 25 feet across.
Qualifying for launch
The completion of Environmental Test Laboratory testing on Firefly’s structural qualification model helps prove that the spacecraft will survive its ride out of Earth’s atmosphere aboard a SpaceX Falcon 9 rocket. Firefly’s Blue Ghost Mission 2 team is now turning its focus to completing assembly and testing of the flight hardware for launch.
Once at the Moon, the Blue Ghost lander will touch down on the far side, delivering its payloads to the surface. Those include LuSEE-Night, a radio telescope that is a joint effort by NASA, the U.S. Department of Energy, and University of California, Berkeley’s Space Sciences Laboratory. A payload developed at JPL called User Terminal will test a compact, low-cost S-band radio communications system that could enable future far-side missions to talk to each other and to relay orbiters.
Meantime, Firefly’s Elytra Dark orbital vehicle will have deployed into lunar orbit ESA’s (European Space Agency’s)Lunar Pathfinder communications satellite — a payload on which NASA is collaborating. Both vehicles will remain in orbit and able to relay data from the far-side surface back to Earth.
“Firefly’s Blue Ghost Mission 2 will deliver both NASA and international commercial payloads to further prove out technologies for Artemis and help enable a long-term presence on the Moon,” said Ray Allensworth, Firefly’s spacecraft program director. “The extensive spacecraft environmental testing we did at JPL for Mission 1 was a critical step in Firefly’s test campaign for our historic lunar mission. Now we’re collaborating again to support a successful repeat on the Moon that will unlock even more insights for future robotic and human missions.”
NASA Completes Nancy Grace Roman Space Telescope Construction (News Release)
NASA’s next big eye on the cosmos is now fully assembled. On November 25, technicians joined the inner and outer portions of the Nancy Grace Roman Space Telescope in the largest clean room at the agency’s Goddard Space Flight Center in Greenbelt, Maryland.
“Completing the Roman observatory brings us to a defining moment for the agency,” said NASA Associate Administrator Amit Kshatriya. “Transformative science depends on disciplined engineering, and this team has delivered—piece by piece, test by test—an observatory that will expand our understanding of the Universe. As Roman moves into its final stage of testing following integration, we are focused on executing with precision and preparing for a successful launch on behalf of the global scientific community.”
After final testing, Roman will move to the launch site at NASA’s Kennedy Space Center in Florida for launch preparations in summer 2026. Roman is slated to launch by May 2027, but the team is on track for launch as early as fall 2026. A SpaceX Falcon Heavy rocket will send the observatory to its final destination a million miles from Earth.
“With Roman’s construction complete, we are poised at the brink of unfathomable scientific discovery,” said Julie McEnery, Roman’s senior project scientist at NASA Goddard. “In the mission’s first five years, it’s expected to unveil more than 100,000 distant worlds, hundreds of millions of stars, and billions of galaxies. We stand to learn a tremendous amount of new information about the Universe very rapidly after Roman launches.”
Observing from space will make Roman very sensitive to infrared light — light with a longer wavelength than our eyes can see — from far across the cosmos. Pairing its crisp infrared vision with a sweeping view of space will allow astronomers to explore myriad cosmic topics, from dark matter and dark energy to distant worlds and solitary black holes, and conduct research that would take hundreds of years using other telescopes.
“Within our lifetimes, a great mystery has arisen about the cosmos: why the expansion of the Universe seems to be accelerating. There is something fundamental about space and time we don’t yet understand, and Roman was built to discover what it is,” said Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters in Washington. “With Roman now standing as a complete observatory, which keeps the mission on track for a potentially early launch, we are a major step closer to understanding the Universe as never before. I couldn’t be prouder of the teams that have gotten us to this point.”
Double vision
Roman is equipped with two instruments: the Wide Field Instrument and Coronagraph Instrument technology demonstration.
The coronagraph will demonstrate new technologies for directly imaging planets around other stars. It will block the glare from distant stars and make it easier for scientists to see the faint light from planets in orbit around them. The Coronagraph aims to photograph worlds and dusty disks around nearby stars in visible light to help us see giant worlds that are older, colder, and in closer orbits than the hot, young super-Jupiters direct imaging has mainly revealed so far.
“The question of ‘Are we alone?’ is a big one, and it’s an equally big task to build tools that can help us answer it,” said Feng Zhao, the Roman Coronagraph Instrument manager at NASA’s Jet Propulsion Laboratory in Southern California. “The Roman Coronagraph is going to bring us one step closer to that goal. It’s incredible that we have the opportunity to test this hardware in space on such a powerful observatory as Roman.”
The coronagraph team will conduct a series of pre-planned observations for three months spread across the mission’s first year-and-a-half of operations, after which the mission may conduct additional observations based on scientific community input.
The Wide Field Instrument is a 288-megapixel camera that will unveil the cosmos all the way from our Solar System to near the edge of the observable Universe. Using this instrument, each Roman image will capture a patch of the sky bigger than the apparent size of a full moon. The mission will gather data hundreds of times faster than NASA’s Hubble Space Telescope, adding up to 20,000 terabytes (20 petabytes) over the course of its five-year primary mission.
“The sheer volume of the data Roman will return is mind-boggling and key to a host of exciting investigations,” said Dominic Benford, Roman’s program scientist at NASA Headquarters.
Survey trifecta
Using the Wide Field Instrument, Roman will conduct three core surveys which will account for 75% of the primary mission. The High-Latitude Wide-Area Survey will combine the powers of imaging and spectroscopy to unveil more than a billion galaxies strewn across a wide swath of space and time. Astronomers will trace the evolution of the Universe to probe dark matter — invisible matter detectable only by how its gravity affects things we can see — and trace the formation of galaxies and galaxy clusters over time.
The High-Latitude Time-Domain Survey will probe our dynamic Universe by observing the same region of the cosmos repeatedly. Stitching these observations together to create movies will allow scientists to study how celestial objects and phenomena change over time periods of days to years. That will help astronomers study dark energy — the mysterious cosmic pressure thought to accelerate the Universe’s expansion — and could even uncover entirely new phenomena that we don’t yet know to look for.
Roman’s Galactic Bulge Time-Domain Survey will look inward to provide one of the deepest views ever of the heart of our Milky Way galaxy. Astronomers will watch hundreds of millions of stars in search of microlensing signals — gravitational boosts of a background star’s light caused by the gravity of an intervening object. While astronomers have mainly discovered star-hugging worlds, Roman’s microlensing observations can find planets in the habitable zone of their star and farther out, including worlds like every planet in our Solar System except Mercury.
Microlensing will also reveal rogue planets—worlds that roam the galaxy untethered to a star — and isolated black holes. The same dataset will reveal 100,000 worlds that transit, or pass in front of, their host stars.
The remaining 25% of Roman’s five-year primary mission will be dedicated to other observations that will be determined with input from the broader scientific community. The first such program, called the Galactic Plane Survey, has already been selected.
Because Roman’s observations will enable such a wide range of science, the mission will have a General Investigator Program designed to support astronomers to reveal scientific discoveries using Roman data. As part of NASA’s commitment to Gold Standard Science, NASA will make all of Roman’s data publicly available with no exclusive use period. This ensures that multiple scientists and teams can use data at the same time, which is important since every Roman observation will address a wealth of science cases.
Roman’s namesake — Dr. Nancy Grace Roman, NASA’s first chief astronomer — made it her personal mission to make cosmic vistas readily accessible to all by paving the way for telescopes based in space.
“The mission will acquire enormous quantities of astronomical imagery that will permit scientists to make groundbreaking discoveries for decades to come, honoring Dr. Roman’s legacy in promoting scientific tools for the broader community,” said Jackie Townsend, Roman’s deputy project manager at NASA Goddard. “I like to think Dr. Roman would be extremely proud of her namesake telescope and thrilled to see what mysteries it will uncover in the coming years.”
The Nancy Grace Roman Space Telescope is managed at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, with participation by NASA’s Jet Propulsion Laboratory in Southern California; Caltech/IPAC in Pasadena, California; the Space Telescope Science Institute in Baltimore; and a science team comprising scientists from various research institutions. The primary industrial partners are BAE Systems Inc. in Boulder, Colorado; L3Harris Technologies in Rochester, New York; and Teledyne Scientific & Imaging in Thousand Oaks, California.
NASA’s Dragonfly Soaring Through Key Development, Test Activities (News Release - September 8)
NASA’s Dragonfly mission has cleared several key design, development and testing milestones, and remains on track towards launch in July 2028.
Dragonfly, a car-sized, nuclear-powered rotorcraft being designed and built for NASA at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, will explore Saturn’s moon Titan. Following launch and a six-year journey to Titan, the Dragonfly rotorcraft will spend over three years investigating multiple landing sites across the moon’s diverse surface. Flying a comprehensive science package, Dragonfly seeks to understand Titan habitability and the building blocks of life as we know it.
Hardware is being built and software developed, tests are being completed and analyses verified as the team progresses through its development schedule.
“Dragonfly has moved far beyond a concept on a computer screen – the components of the rotorcraft lander are being built as scientists and engineers transform this bold exploration idea into reality,” said Elizabeth “Zibi” Turtle, Dragonfly principal investigator from APL. “From the cleanrooms to the wind tunnels, we’re performing critical tests that are informing our next steps of development and demonstrating how Dragonfly will perform on and above Titan’s surface.”
Recent tests have included aerodynamic analyses of Dragonfly’s rotors and durability trials of the foam coating that will insulate the rotorcraft from Titan’s frigid temperatures. The science payload is also coming together, with instrument components delivered and set up for additional testing. Flight systems are also being evaluated and the flight radio has been delivered and tested.
NASA
Riding the Wind
APL and NASA engineers are wrapping up a monthlong campaign to confirm the performance of Dragonfly’s rotors in Titan-like conditions at NASA Langley Research Center’s Transonic Dynamics Tunnel in Virginia.
Bathing the sensor-laden model in a flow of heavy gas that simulates Titan’s thick atmosphere, the testing team has been gathering data on the rotor system’s aeromechanical performance – looking at factors like stress loads on the rotor arms, and effects of vibration on the rotor blades and lander body – information that will eventually feed into Dragonfly’s flight plans and navigation software.
NASA
Mass Spectrometer on the Move
Scientists and engineers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, have completed a critical part of the Dragonfly Mass Spectrometer (DraMS), which will analyze chemical components and processes on Titan, including potentially biologically-relevant compounds. The Ion Trap Mass Spectrometer, effectively the “heart” of the DraMS package, has cleared its acceptance review and is being prepared for space-environment tests and integration with other DraMS components.
Johns Hopkins APL / Justin Artis
Keeping Dragonfly Warm
APL engineers have completed structural and thermal testing of the foam insulation for the Dragonfly lander, verifying that the insulation will maintain its shape and protect the lander on Titan, where ambient temperatures get to approximately -300°F (or about -185°C). The lander body will be covered in a 3-inch-thick (7.6-centimeter thick) layer of Solimide-based foam, which is designed to cover science instruments and other exterior elements. The team has tested the insulation in the large Titan-environment chamber at APL, as well as in the wind tunnel at NASA Langley.
Johns Hopkins APL
Long-Distance Communications
Engineers at APL have completed the flight radios that will serve as the communications receiver and transmitter for Dragonfly’s journey to and operations on Titan. The APL-developed Frontier radios are versatile telecommunications devices proven on missions from the Sun to Pluto and beyond. As a software-defined radio — where software is used to customize the radio for specific mission requirements — the Frontier is smaller and needs less power than other deep-space radios, and can send and receive signals in a wide range of frequencies.
Lockheed Martin
Ensuring Safe Entry
Engineers at Lockheed Martin in Denver have passed the first set of major milestones for the flight aeroshell, taking a big step towards making sure the casing that will protect Dragonfly upon its arrival at Titan can withstand the extreme thermal and structural loads of a ballistic atmospheric entry. This includes fabrication, cure and thermal-cycle testing of the aeroshell heat shield and backshell structures, with a static test campaign and thermal protection system installation up next.
Dragonfly will formally begin its integration and test phase in January 2026. The mission is scheduled to launch in July 2028 on a SpaceX Falcon Heavy launch vehicle from NASA’s Kennedy Space Center in Florida.
The Dragonfly mission is flying through milestones! Recent thermal and environmental testing shows how the rotorcraft will survive and navigate Titan’s skies. This bold mission will explore one of our solar system’s most intriguing worlds. https://t.co/ctPlSEzMySpic.twitter.com/k6Y9DUMstx
U.S. Space Force Launches Eighth X-37B Mission (Press Release - August 23)
KENNEDY SPACE CENTER, Fla. (AFNS) -- The U.S. Space Force, in partnership with SpaceX, successfully launched the eighth mission of the X-37B Orbital Test Vehicle(OTV-8) on a Falcon 9 rocket at 11:50 p.m. Eastern Daylight Time on August 21, 2025, from Kennedy Space Center's Launch Complex 39A.
The SpaceX rocket carried the X-37B Orbital Test Vehicle into orbit, marking the eighth space flight for the X-37B program.
"As we continue to set the pace for space, I am incredibly proud of our team's professionalism and persistence supporting this launch,” said Space Launch Delta 45 Commander Col. Brian Chatman. “X-37B continues to prove itself as a premier testing platform aiding in experiments to better understand our future in space. These experiments, X-37B itself, and Space Launch Delta 45's ability to perform fast, flexible launches all play crucial roles in bolstering our resilience and enhancing our ability to swiftly adapt to the challenges in space of today and tomorrow," Chatman added.
The X-37B is a dynamic and responsive spacecraft responsible for conducting a range of tests and experiments that expedite the development of critical next-generation technologies and operational concepts for reusable space capabilities.
U.S. Space Force Scheduled to Launch Eighth X-37B Mission (Press Release)
WASHINGTON (AFNS) -- The U.S. Space Force, in partnership with the Air Force Rapid Capabilities Office, is scheduled to launch the eighth mission of the X-37B Orbital Test Vehicle(OTV-8) on August 21, 2025, from Kennedy Space Center, Florida.
X-37B Mission 8 will launch on a SpaceX Falcon 9 rocket, designated USSF-36, with a wide range of test and experimentation objectives. These operational demonstrations and experiments comprise of next-generation technologies including laser communications and the highest performing quantum inertial sensor ever tested in space. Mission partners include the Air Force Research Lab and the Defense Innovation Unit, respectively.
Mission 8 will contribute to improving the resilience, efficiency and security of U.S. space-based communications architectures by conducting laser communications demonstrations involving proliferated commercial satellite networks in low-Earth orbit. Laser communications are integral to the future of space communications as the shorter wavelength of infrared light increases the amount of data that can be sent with each transmission. Additionally, they are more secure than traditional radio frequency transmissions owing to the more targeted nature of laser beams.
The use of proliferated relay networks enhances the resilience of U.S. space architectures by ensuring that they contain no single point of failure.
These experiments come as part of a broader push across the U.S. Space Force to uphold the safety and security of the space domain by enhancing the resilience and flexibility of U.S. orbital systems. Commenting on the significance of this demonstration, Chief of Space Operations Gen. Chance Saltzman stated, "OTV-8's laser communications demonstration will mark an important step in the U.S. Space Force's ability to leverage proliferated space networks as part of a diversified and redundant space architectures. In so doing, it will strengthen the resilience, reliability, adaptability and data transport speeds of our satellite communications architecture."
Additionally, Mission 8 will demonstrate the world's highest performing quantum inertial sensor ever used in space. This demonstration will inform accurate unaided navigation in space by detecting rotation and acceleration of atoms without reliance on satellite networks like traditional GPS. This technology is useful for navigation in GPS-denied environments and consequently will enhance the navigational resilience of U.S. spacecraft in the face of current and emerging threats.
As quantum inertial sensors would be useful for navigation in cislunar space, they additionally promise to push the technological frontiers of long-distance space travel and exploration.
Speaking on the quantum inertial sensor demonstration, Col. Ramsey Horn, Space Delta 9 commander, asserted, "OTV-8's quantum inertial sensor demonstration is a welcome step forward for operational resilience in space. Whether navigating beyond Earth-based orbits in cislunar space or operating in GPS-denied environments, quantum inertial sensing allows for robust navigation capabilities when GPS navigation is not possible. Ultimately, this technology contributes significantly to our thrust within the Fifth Space Operations Squadron and across the Space Force guaranteeing movement and maneuverability even in GPS-denied environments."
The Fifth Space Operations Squadron, within USSF Delta 9 conducts day-to-day on-orbit operations of the X-37B in partnership with the Air Force Rapid Capabilities Office.
The X-37B is a dynamic and responsive spacecraft responsible for conducting a range of tests and experiments that expedite the development of critical next-generation technologies and operational concepts for reusable space capabilities.
NASA’s Europa Clipper Captures Mars in Infrared (News Release)
Headed for Jupiter’s moon Europa, the spacecraft did some sightseeing, using a flyby of Mars to calibrate its infrared imaging instrument.
On its recent swing by Mars, NASA’s Europa Clipper took the opportunity to capture infrared images of the Red Planet. The data will help mission scientists calibrate the spacecraft’s thermal imaging instrument so they can be sure that it’s operating correctly when Europa Clipper arrives at the Jupiter system in 2030.
The mission’s sights are set on Jupiter’s moon Europa and the global ocean hidden beneath its icy surface. A year after slipping into orbit around Jupiter, Europa Clipper will begin a series of 49 close flybys of the moon to investigate whether it holds conditions suitable for life.
A key element of that investigation will be thermal imaging — global scans of Europa that map temperatures to shed light on how active the surface is. Infrared imaging will reveal how much heat is being emitted from the moon; warmer areas of the ice give off more energy and indicate recent activity.
The imaging will also tell scientists where the ocean is closest to the surface. Europa is crisscrossed by dramatic ridges and fractures, which scientists believe are caused by ocean convection pulling apart the icy crust and water rising up to fill the gaps.
“We want to measure the temperature of those features,” said Arizona State University’s Phil Christensen, principal investigator of Europa Clipper’s infrared camera, called the Europa Thermal Imaging System (E-THEMIS). “If Europa is a really active place, those fractures will be warmer than the surrounding ice where the ocean comes close to the surface. Or if water erupted onto the surface hundreds to thousands of years ago, then those surfaces could still be relatively warm.”
Why Mars
On March 1, Europa Clipper flew just 550 miles (884 kilometers) above the surface of Mars in order to use the planet’s gravitational pull to reshape the spacecraft’s trajectory. Ultimately, the assist will get the mission to Jupiter faster than if it made a beeline for the gas giant, but the flyby also offered a critical opportunity for Europa Clipper to test E-THEMIS.
For about 18 minutes on March 1, the instrument captured one image per second, yielding more than a thousand grayscale pictures that were transmitted to Earth starting on May 5. After compiling these images into a global snapshot of Mars, scientists applied color, using hues with familiar associations: Warm areas are depicted in red, while colder areas are shown as blue.
By comparing E-THEMIS images with those made from established Mars data, scientists can judge how well the instrument is working.
“We wanted no surprises in these new images,” Christensen said. “The goal was to capture imagery of a planetary body we know extraordinarily well and make sure the dataset looks exactly the way it should, based on 20 years of instruments documenting Mars.”
NASA’s Mars Odyssey orbiter, launched in 2001, carries a sister instrument named THEMIS that has been capturing its own thermal images of the Red Planet for decades. To be extra thorough, the Odyssey team collected thermal images of Mars before, during, and after Europa Clipper’s flyby so that Europa scientists can compare the visuals as an additional gauge of how well E-THEMIS is calibrated.
Europa Clipper also took advantage of the close proximity to Mars to test all the components of its radar instrument in unison for the first time. The radar antennas and the wavelengths they produce are so long that it wasn’t possible for engineers to do that in a clean room before launch. The radar data will be returned and analyzed in the coming weeks and months, but preliminary assessments of the real-time telemetry indicate that the test went well.
To leverage the flyby even further, the science team took the opportunity to ensure that the spacecraft’s telecommunication equipment will be able to conduct gravity experiments at Europa. By transmitting signals to Earth while passing through Mars’ gravity field, they were able to confirm that a similar operation is expected to work at Europa.
Europa Clipper launched from NASA’s Kennedy Space Center in Florida on October 14, 2024, via a SpaceX Falcon Heavy rocket, embarking on a 1.8 billion-mile (2.9 billion-kilometer) journey to Jupiter, which is five times farther from the Sun than Earth is. Now that the probe has harnessed the gravity of Mars, its next gravity assist will be from Earth in 2026.
