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By Space Force
Defense Secretary Pete Hegseth discussed his priorities of strengthening the military by cutting fiscal fraud, waste and abuse at DOD while also finding ways to refocus the department's budget.
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By NASA
5 Min Read NASA Tests Drones to Provide Micrometeorology, Aid in Fire Response
Pilot in command Brayden Chamberlain performs pre-flight checks on the NASA Alta X quadcopter during the FireSense uncrewed aerial system (UAS) technology demonstration in Missoula.<p class="MsoNormal" style="margin: 0in;font-size: 12pt;font-family: Aptos, sans-serif"><span style="font-size: 10pt;font-family: Arial, sans-serif"><span class="msoIns" style="color: teal"><ins cite="mailto:Tabor,%20Abby%20(ARC-DO)" datetime="2025-02-11T16:38"></ins></span></span></p> Credits: NASA/Milan Loiacono In Aug. 2024, a team of NASA researchers and partners gathered in Missoula, to test new drone-based technology for localized forecasting, or micrometeorology. Researchers attached wind sensors to a drone, NASA’s Alta X quadcopter, aiming to provide precise and sustainable meteorological data to help predict fire behavior.
Wildfires are increasing in number and severity around the world, including the United States, and wind is a major factor. It leads to unexpected and unpredictable fire growth, public threats, and fire fatalities, making micrometeorology a very effective tool to combat fire.
This composite image shows the NASA Alta X quadcopter taking off during one of eight flights it performed for the 2024 FireSense UAS technology demonstration in Missoula. Mounted on top of the drone is a unique infrastructure designed at NASA’s Langley Research Center in Hampton,Virginia, to carry sensors that measure wind speed and direction into the sky. On the ground, UAS pilot in command Brayden Chamberlain performs final pre-flight checks. NASA/Milan Loiacono The campaign was run by NASA’s FireSense project, focused on addressing challenges in wildland fire management by putting NASA science and technology in the hands of operational agencies.
“Ensuring that the new technology will be easily adoptable by operational agencies such as the U.S. Forest Service and the National Weather Service was another primary goal of the campaign,” said Jacqueline Shuman, FireSense project scientist at NASA’s Ames Research Center in California’s Silicon Valley.
The FireSense team chose the Alta X drone because the U.S. Forest Service already has a fleet of the quadcopters and trained drone pilots, which could make integrating the needed sensors – and the accompanying infrastructure – much easier and more cost-effective for the agency.
The UAS pilot in command, Brayden Chamberlain, flashes a “good to go” signal to the command tent, indicating that the NASA Alta X quadcopter is prepped for takeoff. Behind Chamberlain, the custom structure attached to the quadcopter holds a radiosonde (small white box) and an anemometer (hidden from view), which will collect data on wind speed and direction, humidity, temperature, and pressure.NASA/Milan Loiacono The choice of the two sensors for the drone’s payload was also driven by their adoptability.
The first, called a radiosonde, measures wind direction and speed, humidity, temperature, and pressure, and is used daily by the National Weather Service. The other sensor, an anemometer, measures wind speed and direction, and is used at weather stations and airports around the world.
The two sensors mounted on the NASA Alta X quadcopter are a radiosonde (left) and an anemometer (right), which measure wind speed and direction. The FireSense teams hopes that by giving them wings, researchers can enable micrometeorology to better predict fire and smoke behavior. NASA/Milan Loiacono
“Anemometers are everywhere, but are usually stationary,” said Robert McSwain, the FireSense uncrewed aerial system (UAS) lead, based at NASA’s Langley Research Center in Hampton, Virginia. “We are taking a sensor type that is already used all over the world, and giving it wings.”
Anemometers are everywhere, but are usually stationary. We are taking a sensor type that is already used all over the world, and giving it wings.
Robert Mcswain
FireSense Uncrewed Aerial System (UAS) Lead
Both sensors create datasets that are already familiar to meteorologists worldwide, which opens up the potential applications of the platform.
Current Forecasting Methods: Weather Balloons
Traditionally, global weather forecasting data is gathered by attaching a radiosonde to a weather balloon and releasing it into the air. This system works well for regional weather forecasts. But the rapidly changing environment of wildland fire requires more recurrent, pinpointed forecasts to accurately predict fire behavior. It’s the perfect niche for a drone.
Left: Steven Stratham (right) attaches a radiosonde to the string of a weather balloon as teammates Travis Christopher (left) and Danny Johnson (center) prepare the balloon for launch. This team of three from Salish Kootenai College is one of many college teams across the nation trained to prepare and launch weather balloons.
Right: One of these weather balloons lifts into the sky, with the radiosonde visible at the end of the string. NASA/Milan Loiacono “These drones are not meant to replace the weather balloons,” said Jennifer Fowler, FireSense’s project manager at Langley. “The goal is to create a drop-in solution to get more frequent, localized data for wildfires – not to replace all weather forecasting.”
The goal is to create a drop-in solution to get more frequent, localized data for wildfires – not to replace all weather forecasting.
Jennifer Fowler
FireSense Project Manager
Drones Provide Control, Repeat Testing, Sustainability
Drones can be piloted to keep making measurements over a precise location – an on-site forecaster could fly one every couple of hours as conditions change – and gather timely data to help determine how weather will impact the direction and speed of a fire.
Fire crews on the ground may need this information to make quick decisions about where to deploy firefighters and resources, draw fire lines, and protect nearby communities.
A reusable platform, like a drone, also reduces the financial and environmental impact of forecasting flights.
“A weather balloon is going to be a one-off, and the attached sensor won’t be recovered,” Fowler said. “The instrumented drone, on the other hand, can be flown repeatedly.”
The NASA Alta X quadcopter sits in a field in Missoula, outfitted with a special structure to carry a radiosonde (sensor on the left) and an anemometer (sensor on the right) into the air. This structure was engineered at NASA’s Langley Research Center to ensure the sensors are far enough from the rotors to avoid interfering with the data collected, but without compromising the stability of the drone.NASA/Milan Loiacono
The Missoula Campaign
Before such technology can be sent out to a fire, it needs to be tested. That’s what the FireSense team did this summer.
Smoke from the nearby Miller Peak Fire drifts by the air control tower at Missoula Airport on August 29, 2024. Miller Peak was one of several fires burning in and around Missoula that month, creating a smokey environment which, combined with the mountainous terrain, made the area an ideal location to test FireSense’s new micrometeorology technology.NASA/Milan Loiacono McSwain described the conditions in Missoula as an “alignment of stars” for the research: the complex mountain terrain produces erratic, historically unpredictable winds, and the sparsity of monitoring instruments on the ground makes weather forecasting very difficult. During the three-day campaign, several fires burned nearby, which allowed researchers to test how the drones performed in smokey conditions.
A drone team out of NASA Langley conducted eight data-collection flights in Missoula. Before each drone flight, student teams from the University of Idaho in Moscow, Idaho, and Salish Kootenai College in Pablo, Montana, launched a weather balloon carrying the same type of radiometer.
Left: Weather balloon teams from University of Idaho and Salish Kootenai College prepare a weather balloon for launch on the second day of the FireSense campaign in Missoula.
Right: NASA Langley drone crew members Todd Ferrante (left) and Brayden Chamberlain (right) calibrate the internal sensors of the NASA Alta X quadcopter before its first test flight on Aug. 27, 2024. Once those data sets were created, they needed to be transformed into a usable format. Meteorologists are used to the numbers, but incident commanders on an active fire need to see the data in a form that allows them to quickly understand which conditions are changing, and how. That’s where data visualization partners come in. For the Missoula campaign, teams from MITRE, NVIDIA, and Esri joined NASA in the field.
An early data visualization from the Esri team shows the flight paths of weather balloons launched on the first day of the FireSense UAS technology demonstration in Missoula. The paths are color-coded by wind speed, from purple (low wind) to bright yellow (high wind).NASA/Milan Loiacono Measurements from both the balloon and the drone platforms were immediately sent to the on-site data teams. The MITRE team, together with NVIDIA, tested high-resolution artificial intelligence meteorological models, while the Esri team created comprehensive visualizations of flight paths, temperatures, and wind speed and direction. These visual representations of the data make conclusions more immediately apparent to non-meteorologists.
What’s Next?
Development of drone capabilities for fire monitoring didn’t begin in Missoula, and it won’t end there.
“This campaign leveraged almost a decade of research, development, engineering, and testing,” said McSwain. “We have built up a UAS flight capability that can now be used across NASA.”
This campaign leveraged almost a decade of research, development, engineering, and testing. We have built up a UAS flight capability that can now be used across NASA.
Robert Mcswain
FireSense Uncrewed Aerial System (UAS) Lead
The NASA Alta X and its sensor payload will head to Alabama and Florida in spring 2025, incorporating improvements identified in Montana. There, the team will perform another technology demonstration with wildland fire managers from a different region.
To view more photos from the FireSense campaign visit: https://nasa.gov/firesense
The FireSense project is led by NASA Headquarters in Washington and sits within the Wildland Fires program, with the project office based at NASA Ames. The goal of FireSense is to transition Earth science and technological capabilities to operational wildland fire management agencies, to address challenges in U.S. wildland fire management before, during, and after a fire.
About the Author
Milan Loiacono
Science Communication SpecialistMilan Loiacono is a science communication specialist for the Earth Science Division at NASA Ames Research Center.
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Last Updated Feb 13, 2025 Related Terms
Ames Research Center's Science Directorate Ames Research Center Earth Science Earth Science Division General Wildfires Wildland Fire Management Explore More
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NASA’s Curiosity Mars rover captured these drifting noctilucent, or twilight, clouds in a 16-minute recording on Jan. 17. (This looping clip has been speeded up about 480 times.) The white plumes falling out of the clouds are carbon dioxide ice that would evaporate closer to the Martian surface.NASA/JPL-Caltech/MSSS/SSI While the Martian clouds may look like the kind seen in Earth’s skies, they include frozen carbon dioxide, or dry ice.
Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA’s Curiosity rover using its Mastcam — its main set of “eyes.” Taken over 16 minutes on Jan. 17 (the 4,426th Martian day, or sol, of Curiosity’s mission), the images show the latest observations of what are called noctilucent (Latin for “night shining”), or twilight clouds, tinged with color by scattering light from the setting Sun.
Sometimes these clouds even create a rainbow of colors, producing iridescent, or “mother-of-pearl” clouds. Too faint to be seen in daylight, they’re only visible when the clouds are especially high and evening has fallen.
Martian clouds are made of either water ice or, at higher altitudes and lower temperatures, carbon dioxide ice. (Mars’ atmosphere is more than 95% carbon dioxide.) The latter are the only kind of clouds observed at Mars producing iridescence, and they can be seen near the top of the new images at an altitude of around 37 to 50 miles (60 to 80 kilometers). They’re also visible as white plumes falling through the atmosphere, traveling as low as 31 miles (50 kilometers) above the surface before evaporating because of rising temperatures. Appearing briefly at the bottom of the images are water-ice clouds traveling in the opposite direction roughly 31 miles (50 kilometers) above the rover.
Dawn of Twilight Clouds
Twilight clouds were first seen on Mars by NASA’s Pathfinder mission in 1997; Curiosity didn’t spot them until 2019, when it acquired its first-ever images of iridescence in the clouds. This is the fourth Mars year the rover has observed the phenomenon, which occurs during early fall in the southern hemisphere.
Mark Lemmon, an atmospheric scientist with the Space Science Institute in Boulder, Colorado, led a paper summarizing Curiosity’s first two seasons of twilight cloud observations, which published late last year in Geophysical Research Letters. “I’ll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact,” he said. “Now it’s become so predictable that we can plan our shots in advance; the clouds show up at exactly the same time of year.”
Each sighting is an opportunity to learn more about the particle size and growth rate in Martian clouds. That, in turn, provides more information about the planet’s atmosphere.
Cloud Mystery
One big mystery is why twilight clouds made of carbon dioxide ice haven’t been spotted in other locations on Mars. Curiosity, which landed in 2012, is on Mount Sharp in Gale Crater, just south of the Martian equator. Pathfinder landed in Ares Vallis, north of the equator. NASA’s Perseverance rover, located in the northern hemisphere’s Jezero Crater, hasn’t seen any carbon dioxide ice twilight clouds since its 2021 landing. Lemmon and others suspect that certain regions of Mars may be predisposed to forming them.
A possible source of the clouds could be gravity waves, he said, which can cool the atmosphere: “Carbon dioxide was not expected to be condensing into ice here, so something is cooling it to the point that it could happen. But Martian gravity waves are not fully understood and we’re not entirely sure what is causing twilight clouds to form in one place but not another.”
Mastcam’s Partial View
The new twilight clouds appear framed in a partially open circle. That’s because they were taken using one of Mastcam’s two color cameras: the left 34 mm focal length Mastcam, which has a filter wheel that is stuck between positions. Curiosity’s team at NASA’s Jet Propulsion Laboratory in Southern California remains able to use both this camera and the higher-resolution right 100 mm focal length camera for color imaging.
The rover recently wrapped an investigation of a place called Gediz Vallis channel and is on its way to a new location that includes boxwork — fractures formed by groundwater that look like giant spiderwebs when viewed from space.
More recently, Curiosity visited an impact crater nicknamed “Rustic Canyon,” capturing it in images and studying the composition of rocks around it. The crater, 67 feet (20 meters) in diameter, is shallow and has lost much of its rim to erosion, indicating that it likely formed many millions of years ago. One reason Curiosity’s science team studies craters is because the cratering process can unearth long-buried materials that may have better preserved organic molecules than rocks exposed to radiation at the surface. These molecules provide a window into the ancient Martian environment and how it could have supported microbial life billions of years ago, if any ever formed on the Red Planet.
More About Curiosity
Curiosity was built by NASA’s Jet Propulsion Laboratory, which is managed by Caltech in Pasadena, California. JPL leads the mission on behalf of NASA’s Science Mission Directorate in Washington. Malin Space Science Systems in San Diego built and operates Mastcam.
For more about Curiosity, visit:
science.nasa.gov/mission/msl-curiosity
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Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
andrew.c.good@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
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Last Updated Feb 11, 2025 Related Terms
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By NASA
Ambiguity.
That’s the word that comes to mind when documentary photographers start each day at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
PACE mission photographer Denny Henry and lead documentary photographer Desiree Stover pose for selfies in the clean room.Credits: NASA “You walk in and think one thing is happening,” said OCI’s lead documentary photographer Desiree Stover. “But in an instant things change – maybe goes wrong –- and you need to be ready to capture it.”
From build to testing to launch, one figure is always present in the background capturing the story of each Goddard mission – the documentary photographer.
In honor of #WorldPhotoDay, follow along as two of our documentarians share what it’s like to capture the story of Goddard’s latest mission build PACE.
PACE or Plankton, Aerosol, Cloud, ocean Ecosystem, is set to launch in early 2024. Its goal is to see ocean and atmosphere features in unparalleled detail. By measuring the intensity of the color that reflects from Earth’s ocean surface, PACE will capture fine details about tiny plant-like organisms and algae that live in the ocean, called phytoplankton, that are the basis of the marine food web and generate half of Earth’s oxygen.
Crafting the Story
For Stover and her partner Denny Henry, PACE’s lead mission photographer, the story starts with the smallest details.
“I think one of the first things I photographed was the outside of a circuit port box. It was literally an empty metal box,” said Henry, who started photographing PACE in 2020, right before the pandemic. “It might be small, but it’s part of a system that’s going to do big things.”
Mark Walter, David Kim, Melyane Ortiz-acosta, and Ariel Obaldo discuss plans for testing the PACE flight Solar Array Panels.Credits: NASA’s Goddard Space Flight Center/Denny Henry A typical day for these photographers usually starts with a morning meeting, assignments and getting ready. By the end of the day, the original plan has likely been changed, multiple times.
“Some days we might shoot eight photos, other days it might be hundreds or more,” Stover said.
PACE, or Plankton, Aerosol, Cloud, ocean Ecosystem, is set to launch in early 2024. Its goal is to see ocean and atmosphere features in unparalleled detail.Credits: NASA Images captured during shoots are used for a variety of things, especially technical components of the mission. This includes documenting builds, spotting mistakes and testing.
Stover got her start at Goddard by photographing NASA’s James Webb Space Telescope before switching to capturing imagery of Goddard’s small instruments, including PACE’s Ocean Color Instrument, or OCI. This advanced sensor will enable continuous measurement of light throughout the ultraviolet to shortwave infrared spectrum to better understand Earth’s ocean and atmosphere.
She says she’s still in awe that her teammates trust her “eye.”
“One of the most fascinating things about working here is that we have a specific job,” she said. “And even though engineers can pick up a camera and take photos, they don’t. They know we’re the experts at it. They trust our eyes to tell and capture the story.”
Henry said one of the most memorable days he’s documented so far was watching the PACE team integrate the SPEXone instrument into the spacecraft.
“All the partners were there as I photographed. It was a big deal,” he said. “I captured every bolt all the way to the mounting. It’s important to get these details. Six months from now someone who wasn’t there might want to see what was done in what order.”
Henry said that capturing images is only part of the job. For every hour of shooting, there’s also an hour spent processing and working with partners to ensure things were documented correctly.
Playing Detective
While telling the story is important, Stover says that part of the job is speaking up, especially when you notice something wrong.
During one assignment documenting vibration testing, Stover noticed that OCI’s Earth shade looked different.
“We took the bagging off and could see tape peeling off the radiator panels, possibly loose wires in certain places,” she said. “When I saw this, I thought back to what it was like when we shot this the first time.”
Physical Science Technician Kristen Washington performs a contamination inspection of the OCI Flight Fold Flat Mirror optic.Credits: Desiree Stover, NASA Goddard It’s common for the photographers to shoot things twice to examine how things might change when in testing. When Stover saw the tape, she got to work ensuring her hunch was right.
She sent a series of images to the thermal team lead letting him know what she found. Plans were already underway to change the design.
The unexpected
Stover and Henry agree that documenting missions has come with some interesting experiences.
Both had to undergo fall protection harness training in the event they had to climb around one of Goddard’s cleanrooms, something that happened to Stover during one assignment.
“Once I was up in Building 29’s high bay. Like up at the very top in the crane rafters shooting. I never thought I was afraid of heights until that moment,” she said. “But I focused on the image and what task I was accomplishing and completed the assignment without issue.”
Henry said adjusting to Covid-19 required a lot of flexibility, especially with sudden changes.
“This is not a job you can do from home,” he said. “After a few months, we adapted.”
Radio Frequency testing of the PACE Earth Coverage Antenna in the Electromagnetic Anechoic Chamber at Goddard Space Flight Center.Credits: NASA’s Goddard Space Flight Center/Denny Henry Henry said that many times mission teams will find that engineering drawings won’t match up with what was actually built. With the pandemic restrictions, PACE heavily relied on his images to note how things changed and why issues occurred.
As PACE heads toward big milestones in the next year, both Stover and Henry are excited to see their work come together, including the day of launch.
They both agreed that photographing the teams involved in each aspect of PACE’s build is especially rewarding as they help create mementos that go along with their mission’s story.
By: Sara Blumberg
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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By NASA
u0022The really interesting thing to me is how time theoretically acts strangely around black holes. According to Albert Einstein’s theory of gravity, black holes change the flow of time,u0022 said Jeremy Schnittman, Goddard research astrophysicist. u0022So much of how we experience the world is based on time, time marching steadily forward. Anything that changes that is a fascinating take on reality.u0022u003cstrongu003eu003cemu003eCredits: NASA’s Goddard Space Flight Center / Rebecca Rothu003c/emu003eu003c/strongu003e Name: Jeremy Schnittman
Formal Job Classification: Research astrophysicist
Organization: Gravitational Astrophysics Laboratory, Astrophysics Division (Code 663)
What do you do and what is most interesting about your role here at Goddard? How do you help support Goddard’s mission?
I try to understand the formation and properties of black holes. I also help develop ideas for new missions to study black holes.
What drew you to astrophysics?
I always liked science and math. The great thing about astrophysics is that it involves a little bit of everything – math, computer programming, physics, chemistry and even philosophy to understand the big picture, the enormity of space.
I have a B.A. in physics from Harvard, and a Ph.D. in physics from MIT. I came to Goddard in 2010 after two post-doctoral fellowships.
Explore how the extreme gravity of two orbiting supermassive black holes distorts our view. In this visualization, disks of bright, hot, churning gas encircle both black holes, shown in red and blue to better track the light source. The red disk orbits the larger black hole, which weighs 200 million times the mass of our Sun, while its smaller blue companion weighs half as much. Zooming into each black hole reveals multiple, increasingly warped images of its partner. Watch to learn more.
Credits: NASA’s Goddard Space Flight Center/Jeremy Schnittman and Brian P. Powell
Download high-resolution video and images from NASA’s Scientific Visualization Studio As an astrophysicist, what do you think about?
I think of myself as a computational physicist as opposed to an experimental or observational physicist. I write many computer programs to do computer simulations of black holes. I also do a lot of theoretical physics, which is pencil and paper work. I think a lot about equations and math to understand black holes.
What is most philosophical about black holes to me is not so much what people most often think about, that their gravity is so strong that even light cannot escape. The really interesting thing to me is how time theoretically acts strangely around black holes. According to Albert Einstein’s theory of gravity, black holes change the flow of time. If you could get close enough to a black hole, theoretically you could go back and forth in time. All our experiments and observations seem to indicate that is how black holes might behave.
So much of how we experience the world is based on time, time marching steadily forward. Anything that changes that is a fascinating take on reality.
Related Link: Gravity Assist: Black Hole Mysteries, with Jeremy Schnittman What do you tell the people you mentor?
I mentor undergraduate, graduate, and post graduate students in astrophysics. Since we are working remotely, I have students from all over the country. I help them with their research projects which mostly relate to black holes in some way. I also offer career advice and help them with their work-life balance. When possible, family comes first.
There are more people coming out of graduate school in astrophysics than there are jobs, so there are going to be many people who will not work for NASA or as a professor. Fortunately, there are a lot of other fascinating, related jobs, and I help guide the students there.
What do you do for fun?
I have a woodshop in our basement where I build furniture, dollhouses, toys, and other items for gifts. As a theoretical physicist, I don’t get to work in a lab. So it is nice to have some hands on experience.
I do a lot of hiking and cycling to exercise. I also enjoy spending time with my family.
Who is your favorite author?
Andy Weir is probably my favorite sci-fi author. I also love the epic naval historical fiction by Patrick O’Brian.
Who inspires you?
My childhood hero, who is still my scientific hero, is Albert Einstein. The more I work in astrophysics, the more he impresses me. Every single one of his predictions that we have been able to test has proven true. It may be a while, but someday I hope we prove his theories about time travel.
Also, I admire Kip Thorne, an American physicist from Cal Tech and recent Nobel laureate, who is “the man” when it comes to black holes. He is also a really nice, good guy, a real mensch. Very humble and down-to-earth. He is always extremely patient, kind and encouraging especially to the younger scientists. He is a good role model as I transition from junior to more senior status.
What is your one big dream?
I make a lot of predictions, so it would be exciting if one of my theories was proven correct. Hopefully someday.
By Elizabeth M. Jarrell
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Conversations with Goddard Conversations With Goddard is a collection of question and answer profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage.
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Last Updated Feb 10, 2025 Related Terms
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