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I Am Artemis: Ethan Jacobs

By: Lee Mohon
20 November 2025 at 11:05
3 Min Read

I Am Artemis: Ethan Jacobs

Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.

Listen to this audio excerpt from Ethan Jacobs, a helicopter pilot and member of the Colorado Army National Guard developing a foundational flight training course for Artemis astronauts:

0:00 / 0:00

High above the Rocky Mountains, Ethan Jacobs is helping NASA preparing to land people on the Moon for the first time in more than 50 years. NASA will send astronauts to the lunar South Pole during the Artemis III mission and beyond. As part of their journeys, crew will travel in a human landing system that will safely transport them from lunar orbit to the lunar surface and back.

Jacobs, a chief warrant officer with the Colorado National Guard and helicopter pilot for 20 years, both privately, and with the U.S. Army active duty and National Guard, has been working with NASA to develop a foundational training course at the High-Altitude Army National Guard Aviation Training Site, near Gypsum, Colorado. The culmination of that work is a NASA-certified foundational training course for astronauts that exposes them to the challenges of vertical flight profiles and landing in extreme conditions.

The challenging conditions we fly in replicates – as much as possible here on Earth – some of the challenges astronauts will face when landing on the Moon.

Ethan Jacobs

Ethan Jacobs

Chief Warrant Officer, Colorado Army National Guard

Colorado’s challenging terrain, dusty and white-out conditions in certain places, and high desert landscape make it an ideal setting for replicating a lunar environment for flight. In addition, there can be flat light where there is little to no shadow, all of which can create visual illusions and challenge a crew’s sense of depth perception.

And a lot of the visual illusions the NASA astronauts training at the High-Altitude Army National Guard Aviation Training Site experience are eye-opening.

“I teach the astronauts how to distinguish slopes in degraded visual conditions because we normally judge slope by shadows and changes in vegetation color,” Jacobs said. “But these conditions in the Colorado mountains can be monochromatic, like on the Moon.”

On a typical flight in a UH-72 Lakota helicopter, Jacobs sits in the front with one astronaut crew member and another astronaut sits in the back. Jacobs trains the astronaut team on how best to identify and overcome visual and cognitive illusions while evaluating techniques and team dynamics. Working with NASA, Jacobs and his team have studied maps of the lunar terrain, then located similar landing zones in the Colorado mountains.

Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
NASA/Charles Beason
Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
NASA/Charles Beason
Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
Colorado National Guard Chief Warrant Officer and military helicopter pilot Ethan Jacobs stands in the hangar bay at the High-Altitude Army National Guard Training Site near Gypsum, Colorado. NASA and the Colorado Army National Guard are partnering on a simulated lander flight training course for Artemis in the mountains of northern Colorado. Jacobs is the lead instructor and helped to develop the course.
NASA/Charles Beason

“The two-person astronaut crew has to work together, communicate, and navigate with real-world consequences,” Jacobs said. “Fuel is burning and they can’t press the pause button like in a simulator. I try to expose them to as many different conditions and various landing zones as possible.”

At the end of the day, adaptability is key to successfully landing in extreme conditions.

Ethan Jacobs

Ethan Jacobs

Chief Warrant Officer, Colorado Army National Guard

NASA recently certified the course, marking a milestone in preparing for the future Artemis III crew. Since 2021, astronauts with NASA and ESA (European Space Agency) have taken part in the high-altitude aviation course have proven to be receptive to the training and adaptable to expanding their piloting skills, Jacobs said.

Artemis astronauts will receive specialized training on the specific lander for their mission from NASA’s commercial providers, SpaceX and Blue Origin. The training course, along with simulators and specialized crew training, provides fundamental coursework that will allow Artemis astronauts to be best prepared to land on the lunar surface.

Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars for the benefit of all.

For more information about Artemis visit:

https://www.nasa.gov/artemis

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Last Updated
Nov 20, 2025
Editor
Lee Mohon
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Corinne M. Beckinger

Lunar Challenge Winner Tests Technology in NASA Thermal Vacuum Chamber

By: Lee Mohon
26 September 2025 at 12:38

By Savannah Bullard

One year after winning second place in NASA’s Break the Ice Lunar Challenge, members of the small business Starpath visited NASA’s Marshall Space Flight Center in Huntsville, Alabama, as part of their prize opportunity to test their upgraded lunar regolith excavation and transportation rover in the center’s 20-foot thermal vacuum chamber.

The technology startup headquartered in Hawthorne, California, won second place overall at the Break the Ice Lunar Challenge’s live demonstration and finale in June 2024. This competition, one of NASA’s Centennial Challenges, tasked competitors to design, build, and demonstrate robotic technologies that could excavate and transport the icy, rocky dirt – otherwise known as regolith – found on the Moon.

A person wearing glasses and a dark polo shirt stands indoors holding an open laptop in one hand. In front of him is a piece of large mechanical equipment resembling a planetary surface rover, with white structural arms and panels covered in gold foil. Behind him, another person is carrying a large, flat, rectangular object. The background shows industrial equipment and a large American flag hanging on the wall.
Starpath team members (foreground: Josh Kavilaveettil, mechanical engineer; background: Aakash Ramachandran, lead rover engineer) put their upgraded lunar regolith rover to the test inside NASA Marshall’s 20-foot thermal vacuum chamber – a prize opportunity marking one year since their 2nd place win in the Break the Ice Lunar Challenge.
NASA/Joe Kuner

“NASA’s Centennial Challenges are a great way to discover new, innovative technologies, including those for future use on the Moon and even Mars,” said Naveen Vetcha, Break the Ice Lunar Challenge manager at NASA Marshall. “Working with winners after the challenge concludes is a perfect example of how we can use NASA facilities to continue advancing these technologies to generate valuable solutions for the agency and industry.”

Starpath built a four-wheeled rover capable of excavating, collecting, and hauling material under extremely harsh environmental conditions that simulate the lunar South Pole. On the rover, a dual drum barrel can extend from the body of the robot – mimicking a movement similar to a crab’s claws – and scrape into rough, hard regolith to excavate material quickly without compromising finite battery life.

Before Starpath made the 2,000-mile drive from California to Alabama this summer, NASA Marshall’s Engineering Test Facility staff prepared a concrete slab outfitted with rocky terrain to act as a testbed for the robot to interact inside the chamber. The V-20 Thermal Vacuum Chamber, located at Marshall’s Environmental Test Facility, can simulate harsh environments by manipulating the chamber’s vacuum, temperature, humidity, and pressure effects. Starpath staff spent about three days at NASA Marshall in August, testing their robot with excavation and mobility trials while collecting data on its performance.

The Starpath team is honing the development of its technology for missions located at the permanently shadowed regions of the lunar South Pole. As a future landing site for NASA’s Artemis missions, which will send astronauts to the Moon and prepare to send the first Americans to Mars, the South Pole region of the Moon is known to contain ice within its regolith. This was the leading inspiration behind the development of the Break the Ice Lunar Challenge, as NASA will require robust technologies that can excavate and transport lunar ice for extraction, purification, and use as drinking water or rocket fuel.

A close-up view of a robotic lunar rover with golden metal treads and a white body, featuring exposed wiring and gold thermal insulation panels. The rover is indoors on a smooth concrete floor. Behind the rover, two individuals wearing dark polo shirts and jeans are standing, one holding a laptop and the other with a hand near his face. An American flag is partially visible in the background. The focus is on the rover, with the people and background slightly out of focus.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, two members of the Starpath team remotely operate the rover and run data in preparation for its entrance to the V20 Thermal Vacuum Chamber.
NASA/Joe Kuner
A white and gold lunar rover prototype is suspended mid-air by heavy-duty straps and chains attached to a ceiling-mounted crane system inside a clean, industrial facility. The rover, featuring gold-colored metal treads and white body panels with reflective gold thermal insulation, is being carefully guided by two workers. One man stands on a rolling blue metal staircase, using a pole to stabilize the rover. Another worker observes nearby on an elevated platform. The background includes a large thermal vacuum chamber. The setting is well-lit with overhead fluorescent lights, and parts of an American flag are visible through transparent plastic curtains framing the entrance of the thermal vacuum chamber.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, employees from NASA Marshall’s Environmental Test Facility work with the Starpath team to carefully maneuver the rover onto a platform that will slide the rover into the chamber.
NASA/Joe Kuner
A technician wearing a black hard hat and gloves kneels on an elevated metal platform, carefully positioning a large robotic lunar rover into place. The rover has gold-colored wheels with a complex tread design and is suspended by heavy-duty chains and straps attached to a lifting rig. Another individual in the foreground watches the procedure closely. The scene takes place inside an industrial testing facility with metal scaffolding, safety rails, and visible structural supports.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, employees from NASA Marshall’s Environmental Test Facility situate the rover over the concrete slab that it will operate on before removing the suspension straps that lifted it onto the platform.
NASA/Joe Kuner
Two people wearing black hard hats stand on an elevated metal platform with yellow guardrails inside a large industrial building. The platform holds a concrete slab and a large lunar rover, featuring gold-colored metal treads and white body panels with reflective gold thermal insulation. Behind the people is a large vacuum chamber with an open door, showing a dark interior lined with metal panels and hooks. The background includes ladders, railings, and metal structures.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, the rover finally freely rests on its concrete slab at the end of the platform. The large metal structure will slide into the chamber, bringing the rover and concrete slab with it.
NASA/Joe Kuner
Three people wearing hard hats stand on a grated metal walkway facing a large circular vacuum chamber with its door open. They are working near a metal platform inside the chamber. The scene includes yellow guardrails sidelining the walkway, overhead lights reflecting on white panels, and cables and metal structures inside the chamber. The vacuum chamber’s door features the NASA “meatball” insignia next to the words “V20 Thermal Vacuum Chamber Environmental Test Facility Huntsville, AL.”
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, NASA Environmental Test Facility employees work with members from the Starpath team to push the sliding platform into the thermal vacuum chamber, with the heavy rover and concrete slab in tow.
NASA/Joe Kuner
Two people wearing dark shirts stand on a metal platform inside a large vacuum chamber, with bright lights mounted nearby. They are next to a large lunar rover, featuring gold-colored metal treads and white body panels with reflective gold thermal insulation. The platform has metal railings, cables running along its base, and a step ladder leading down to a grated walkway.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, the large concrete platform is fully slid into the vacuum chamber, and members from the Starpath team discuss what final preparations need to be made before the chamber is closed.
NASA/Joe Kuner
A person works on a rugged robotic vehicle inside a dimly lit chamber. The robot features gold metallic wheels with deep tread patterns, exposed gears, and motors, and sits atop a concrete slab. The workspace is cluttered with cables and equipment, and a bright overhead light illuminates the area. Sand and rocks scattered on the floor indicate a testing environment simulating planetary surfaces.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, the rover sits on a concrete slab that will be used to mimic the rugged lunar surface. The slab features a sandy, rocky terrain, and lamps within the chamber will turn on and off to simulate sunlight.
NASA/Joe Kuner
A person kneels beside a large, metallic rover with a golden finish, inspecting it. The robot, whose large golden wheels can be seen just out of focus, is connected to multiple cables as it prepares for testing. The individual wears a black polo shirt, jeans, and tan work boots. The setting is a thermal vacuum chamber with a dark wall and visible wiring, and a concrete floor.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, Starpath mechanical engineer Josh Kavilaveettil monitors a component of the rover, attached to wires, in preparation for testing.
NASA/Joe Kuner
A large cylindrical chamber labeled "V20 Thermal Vacuum Chamber" with the NASA “meatball” insignia next to it is shown in an indoor testing facility. Inside the chamber, a robotic lunar rover prototype can be seen sitting atop a concrete slab on a sliding platform. The robot features golden metal treads on its four large wheels and a white body, surrounded by cables and structural supports.
Starpath, one of three winning teams in NASA’s Break the Ice Lunar Challenge, was invited by NASA Centennial Challenges to test their lunar excavation and traversal rover at the agency’s thermal vacuum chamber facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The invitation was an added perk to the team’s successful participation in Break the Ice, which took place from 2020 to 2024. A space hardware startup from Hawthorne, California, Starpath won a cumulative $838,461 across three levels of Phase 2 before winning second place overall at the challenge’s live demonstration and finale in June 2024. In this image, the rover sits atop its concrete slab at the mouth of the thermal vacuum chamber, ready to be closed in and commence testing.
NASA/Joe Kuner

NASA’s Break the Ice Lunar Challenge was a NASA Centennial Challenge that ran from 2020 to 2024. The challenge was led by the agency’s Marshall Space Flight Center with support from NASA’s Kennedy Space Center in Florida. Centennial Challenges are part of the Prizes, Challenges, and Crowdsourcing program under NASA’s Space Technology Mission Directorate.

For more information about the challenge and its conclusion, visit:

nasa.gov/winit

💾

One year after winning second place in NASA’s Break the Ice Lunar Challenge, members of the small business Starpath visited NASA’s Marshall Space Flight Cent...

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

By: Lee Mohon
25 September 2025 at 14:00
3 Min Read

NASA Opens 2026 Human Lander Challenge for Life Support Systems, More

NASA’s 2026 Human Lander Challenge banner showing an illustration of an astronaut looking out over the surface of the Moon.

NASA’s 2026 Human Lander Challenge is seeking ideas from college and university students to help evolve and transform technologies for life support and environmental control systems. These systems are critical for sustainable, long-duration human spaceflight missions to the Moon, Mars, and beyond.

The Human Lander Challenge supports NASA’s efforts to foster innovative solutions to a variety of areas for NASA’s long-duration human spaceflight plans at the Moon under the Artemis campaign. The Human Lander Challenge is sponsored by the Human Landing System Program within the Exploration Systems Development Mission Directorate.

The 2026 competition invites undergraduate and graduate-level teams based in the U.S., along with their faculty advisors, to develop innovative, systems-level solutions to improve aspects for a lander’s ECLSS (Environmental Control and Life Support System) performance. These air, water, and waste systems provide vital life support so future Artemis astronauts can live and work safely and effectively on the Moon during crewed missions.

Each proposed solution should focus on one of the following long-duration ECLSS subtopics:

  • Noise suppression and control
  • Sensor reduction in hardware health monitoring systems
  • Potable water dispenser
  • Fluid transfer between surface assets on the Moon and Mars

“A robust ECLSS transforms a spacecraft like a lander from just hardware into a livable environment, providing breathable air, clean water, and safe conditions for astronauts as they explore the Moon,” said Kevin Gutierrez, acting office manager for the Human Landing Systems Missions Systems Management Office at NASA Marshall. “Without ECLSS we can’t sustain human presence on the Moon or take the next steps toward Mars. The subtopics in the 2026 Human Lander Challenge reflect opportunities for students to support the future of human spaceflight.”

2026 Competition

Teams should submit a non-binding notice of intent by Monday, Oct. 20, if they intend to participate. Proposal packages are due March 4, 2026.

Based on proposal package evaluations in Phase 1, up to 12 finalist teams will be selected to receive a $9,000 stipend and advance to Phase 2 of the competition, which includes a final design review near NASA’s Marshall Space Flight Center in Huntsville, Alabama, June 23-25, 2026. The top three placing teams from Phase 2 will share a total prize of $18,000.

Landers are in development by SpaceX and Blue Origin as transportation systems that will safely ferry astronauts from lunar orbit to the Moon’s surface and back for the agency’s Artemis campaign. NASA Marshall manages the Human Landing System Program.

The challenge is administered by the National Institute of Aerospace on behalf of the agency.

Through the agency’s Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.

For more information on NASA’s Human Lander Challenge and how to participate, visit:

https://hulc.nianet.org/

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From Supercomputers to Wind Tunnels: NASA’s Road to Artemis II

By: Lee Mohon
18 September 2025 at 16:41
5 Min Read

From Supercomputers to Wind Tunnels: NASA’s Road to Artemis II

By Jill Dunbar

Of the many roads leading to successful Artemis missions, one is paved with high-tech computing chips called superchips. Along the way, a partnership between NASA wind tunnel engineers, data visualization scientists, and software developers verified a quick, cost-effective solution to improve NASA’s SLS (Space Launch System) rocket for the upcoming Artemis II mission. This will be the first crewed flight of the SLS rocket and Orion spacecraft, on an approximately 10-day journey around the Moon.  

A high-speed network connection between high-end computing resources at the NASA Advanced Supercomputing facility and the Unitary Plan Wind Tunnel, both located at NASA’s Ames Research Center in California’s Silicon Valley, is enabling a collaboration to improve the rocket for the Artemis II mission. During the Artemis I test flight, the SLS rocket experienced higher-than-expected vibrations near the solid rocket booster attach points, caused by unsteady airflow between the gap.

One solution proposed for Artemis II was adding four strakes. A strake is a thin, fin-like structure commonly used on aircraft to improve unsteady airflow and stability. Adding them to the core stage minimizes the vibration of components.

The strake solution comes from previous tests in the Unitary Plan Wind Tunnel, where NASA engineers applied an Unsteady Pressure Sensitive Paint (uPSP) technique to SLS models. The paint measures changes over time in aerodynamic pressures on air and spacecraft.

This supercomputer simulation peers down at a close-up of the SLS rocket during ascent. The force of friction is represented in greens, yellows, and blues. A six-foot-long strake flanking each booster’s forward connection point on the SLS intertank smooths vibrations induced by airflow, represented by purples, yellows, and reds. The white streams represent a contour plot of density magnitude, highlighting the change of density in the air.
Credit: NASA/NAS/Gerrit-Daniel Stich, Michael Barad, Timothy Sandstrom, Derek Dalle

It is sprayed onto test models, and high-speed cameras capture video of the fluctuating brightness of the paint, which corresponds to the local pressure fluctuations on the model. Capturing rapid changes in pressure across large areas of the SLS model helps engineers understand the fast-changing environment. The data is streamed to the NASA Advanced Supercomputing facility via a high-speed network connection.

“This technique lets us see wind tunnel data in much finer detail than ever before. With that extra clarity, engineers can create more accurate models of how rockets and spacecraft respond to stress, helping design stronger, safer, and more efficient structures,” said Thomas Steva, lead engineer, SLS sub-division in the Aerodynamics Branch at NASA’s Marshall Space Flight Center in Huntsville, Alabama.

For the SLS configuration with the strakes, the wind tunnel team applied the paint to a scale model of the rocket. Once the camera data streamed to the supercomputing facility, a team of visualization and data analysis experts displayed the results on the hyperwall visualization system, giving the SLS team an unprecedented look at the effect of the strakes on the vehicle’s performance. Teams were able to interact with and analyze the paint data.

NASA’s high-end computing capability and facilities, paired with unique facilities at Ames, give us the ability to increase productivity by shortening timelines, reducing costs, and strengthening designs in ways that directly support safe human spaceflight.

Kevin Murphy

Kevin Murphy

NASA's Chief Science Data Officer

“NASA’s high-end computing capability and facilities, paired with unique facilities at Ames, give us the ability to increase productivity by shortening timelines, reducing costs, and strengthening designs in ways that directly support safe human spaceflight,” said Kevin Murphy, NASA’s chief science data officer and lead for the agency’s High-End Computing Capability portfolio at NASA Headquarters in Washington. “We’re actively using this capability to help ensure Artemis II is ready for launch.”

Leveraging the high-speed connection between the Unitary Plan Wind Tunnel and NASA Advanced Supercomputing facility reduces the typical data processing time from weeks to just hours.

For years, the NASA Advancing Supercomputing Division’s in-house Launch, Ascent, and Vehicle Aerodynamics software has helped play a role in designing and certifying the various SLS vehicle configurations.

“Being able to work with the hyperwall and the visualization team allows for in-person, rapid engagement with data, and we can make near-real-time tweaks to the processing,” said Lara Lash, an aerospace engineering researcher in the Experimental Aero-Physics Branch at NASA Ames who leads the uPSP work.

This video shows two simulations of the SLS (Space Launch System) rocket using NASA’s Launch Ascent and Vehicle Aerodynamics solver. For the Artemis II test flight, a pair of six-foot-long strakes will be added to the core stage of SLS that will smooth vibrations induced by airflow during ascent. The top simulation is without strakes while the bottom shows the airflow with strakes. The green and yellow colors on the rocket’s surface show how the airflow scrapes against the rocket’s skin. The white and gray areas show changes in air density between the boosters and core stage, with the brightest regions marking shock waves. The strakes reduce vibrations and improves the safety of the integrated vehicle.
NASA/NAS/Gerrit-Daniel Stich, Michael Barad, Timothy Sandstrom, Derek Dalle

This time, NASA Advanced Supercomputing researchers used the Cabeus supercomputer, which is the agency’s largest GPU-based computing cluster containing 350 NVIDIA superchip nodes. The supercomputer produced a series of complex computational fluid dynamic simulations that helped explain the underlying physics of the strake addition and filled in gaps between areas where the wind tunnel cameras and sensors couldn’t reach.

This truly was a joint effort across multiple teams.

“The beauty of the strake solution is that we were able to add strakes to improve unsteady aerodynamics, and associated vibration levels of components in the intertank,” said Kristin Morgan, who manages the strake implementation effort for the SLS at Marshall.

A team from Boeing is currently installing the strakes on the rocket at NASA’s Kennedy Space Center in Florida and are targeting October 2025 to complete installation.

Through Artemis, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and build the foundation for the first crewed missions to Mars.

To learn more about Artemis, visit:

https://www.nasa.gov/artemis

News Media Contact

Jonathan Deal
Marshall Space Flight Center, Huntsville, Ala. 
256.544.0034
jonathan.e.deal@nasa.gov

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Last Updated
Sep 19, 2025
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Lee Mohon
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NASA’s Chandra Finds Black Hole With Tremendous Growth

By: Lee Mohon
18 September 2025 at 13:31
An artist's concept of a supermassive black hole, a surrounding disk of material falling towards the black hole and a jet containing particles moving away at close to the speed of light. This black hole represents a recently-discovered quasar powered by a black hole. New Chandra observations indicate that the black hole is growing at a rate that exceeds the usual limit for black holes, called the Eddington Limit. Credit: NASA/CXC/SAO/M. Weiss
An artist’s concept of a supermassive black hole, a surrounding disk of material falling towards the black hole and a jet containing particles moving away at close to the speed of light. This black hole represents a recently-discovered quasar powered by a black hole. New Chandra observations indicate that the black hole is growing at a rate that exceeds the usual limit for black holes, called the Eddington Limit. Credit: NASA/CXC/SAO/M. Weiss
X-ray: NASA/CXC/INAF-Brera/L. Ighina et al.; Illustration: NASA/CXC/SAO/M. Weiss; Image Processing: NASA/CXC/SAO/N. Wolk

A black hole is growing at one of the fastest rates ever recorded, according to a team of astronomers. This discovery from NASA’s Chandra X-ray Observatory may help explain how some black holes can reach enormous masses relatively quickly after the big bang.

The black hole weighs about a billion times the mass of the Sun and is located about 12.8 billion light-years from Earth, meaning that astronomers are seeing it only 920 million years after the universe began. It is producing more X-rays than any other black hole seen in the first billion years of the universe.

The black hole is powering what scientists call a quasar, an extremely bright object that outshines entire galaxies. The power source of this glowing monster is large amounts of matter funneling around and entering the black hole.

While the same team discovered it two years ago, it took observations from Chandra in 2023 to discover what sets this quasar, RACS J0320-35, apart. The X-ray data reveal that this black hole appears to be growing at a rate that exceeds the normal limit for these objects.

“It was a bit shocking to see this black hole growing by leaps and bounds,” said Luca Ighina of the Center for Astrophysics | Harvard & Smithsonian in Cambridge, Massachusetts, who led the study.

When matter is pulled toward a black hole it is heated and produces intense radiation over a broad spectrum, including X-rays and optical light. This radiation creates pressure on the infalling material. When the rate of infalling matter reaches a critical value, the radiation pressure balances the black hole’s gravity, and matter cannot normally fall inwards any more rapidly. That maximum is referred to as the Eddington limit.

Scientists think that black holes growing more slowly than the Eddington limit need to be born with masses of about 10,000 Suns or more so they can reach a billion solar masses within a billion years after the big bang — as has been observed in RACS J0320-35. A black hole with such a high birth mass could directly result from an exotic process: the collapse of a huge cloud of dense gas containing unusually low amounts of elements heavier than helium, conditions that may be extremely rare.

If RACS J0320-35 is indeed growing at a high rate — estimated at 2.4 times the Eddington limit — and has done so for a sustained amount of time, its black hole could have started out in a more conventional way, with a mass less than a hundred Suns, caused by the implosion of a massive star.

“By knowing the mass of the black hole and working out how quickly it’s growing, we’re able to work backward to estimate how massive it could have been at birth,” said co-author Alberto Moretti of INAF-Osservatorio Astronomico di Brera in Italy. “With this calculation we can now test different ideas on how black holes are born.”

To figure out how fast this black hole is growing (between 300 and 3,000 Suns per year), the researchers compared theoretical models with the X-ray signature, or spectrum, from Chandra, which gives the amounts of X-rays at different energies. They found the Chandra spectrum closely matched what they expected from models of a black hole growing faster than the Eddington limit. Data from optical and infrared light also supports the interpretation that this black hole is packing on weight faster than the Eddington limit allows.

“How did the universe create the first generation of black holes?” said co-author Thomas of Connor, also of the Center for Astrophysics. “This remains one of the biggest questions in astrophysics and this one object is helping us chase down the answer.”

Another scientific mystery addressed by this result concerns the cause of jets of particles that move away from some black holes at close to the speed of light, as seen in RACS J0320-35. Jets like this are rare for quasars, which may mean that the rapid rate of growth of the black hole is somehow contributing to the creation of these jets.

The quasar was previously discovered as part of a radio telescope survey using the Australian Square Kilometer Array Pathfinder, combined with optical data from the Dark Energy Camera, an instrument mounted on the Victor M. Blanco 4-meter Telescope at the Cerro Tololo Inter-American Observatory in Chile. The U.S. National Science Foundation National Optical-Infrared Astronomy Research Laboratory’s Gemini-South Telescope on Cerro Pachon, Chile was used to obtain the accurate distance of RACS J0320-35.

A paper describing these results has been accepted for publication in The Astrophysical Journal and is available here.

NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, and flight operations from Burlington, Massachusetts.

Learn more about the Chandra X-ray Observatory and its mission here:

https://www.nasa.gov/chandra

https://chandra.si.edu

Visual Description

This release features a quasar located 12.8 billion light-years from Earth, presented as an artist’s illustration and an X-ray image from NASA’s Chandra X-ray Observatory.

In the artist’s illustration, the quasar, RACS J0320-35, sits at our upper left, filling the left side of the image. It resembles a spiraling, motion-blurred disk of orange, red, and yellow streaks. At the center of the disk, surrounded by a glowing, sparking, brilliant yellow light, is a black egg shape. This is a black hole, one of the fastest-growing black holes ever detected. The black hole is also shown in a small Chandra X-ray image inset at our upper right. In that depiction, the black hole appears as a white dot with an outer ring of neon purple.

The artist’s illustration also highlights a jet of particles blasting away from the black hole at the center of the quasar. The streaked silver beam starts at the core of the distant quasar, near our upper left, and shoots down toward our lower right. The blurry beam of energetic particles appears to widen as it draws closer and exits the image.

News Media Contact

Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu

Corinne Beckinger
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
corinne.m.beckinger@nasa.gov

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NASA Artemis II Moon Rocket Ready to Fly Crew

By: Lee Mohon
17 September 2025 at 16:37

NASA’s Artemis II SLS (Space Launch System) rocket poised to send four astronauts from Earth on a journey around the Moon next year may appear identical to the Artemis I SLS rocket. On closer inspection, though, engineers have upgraded the agency’s Moon rocket inside and out to improve performance, reliability, and safety.

SLS flew a picture perfect first mission on the Artemis I test flight, meeting or exceeding parameters for performance, attitude control, and structural stability to an accuracy of tenths or hundredths of a percent as it sent an uncrewed Orion thousands of miles beyond the Moon. It also returned volumes of invaluable flight data for SLS engineers to analyze to drive improvements.

Image shows orange rocket stage with two large solid rocket boosters stacked alongside on March 23.
Teams with NASA’s Exploration Ground Systems integrate the SLS (Space Launch System) Moon rocket with the solid rocket boosters onto mobile launcher 1 inside High Bay 3 of the Vehicle Assembly Building at NASA’s Kennedy Space Center in March 2025. Artemis II is the first crewed test flight under NASA’s Artemis campaign and is another step toward missions on the lunar surface and helping the agency prepare for future human missions to Mars.
NASA/Frank Michaux

For Artemis II, the major sections of SLS remain unchanged – a central core stage, four RS-25 main engines, two five-segment solid rocket boosters, the ICPS (interim cryogenic propulsion stage), a launch vehicle stage adapter to hold the ICPS, and an Orion stage adapter connecting SLS to the Orion spacecraft. The difference is in the details.

“While we’re proud of our Artemis I performance, which validated our overall design, we’ve looked at how SLS can give our crews a better ride,” said John Honeycutt, NASA’s SLS Program manager. “Some of our changes respond to specific Artemis II mission requirements while others reflect ongoing analysis and testing, as well as lessons learned from Artemis I.”

Engineers have outfitted the ICPS with optical targets that will serve as visual cues to the astronauts aboard Orion as they manually pilot Orion around the upper stage and practice maneuvers to inform docking operations for Artemis III.

The Artemis II rocket includes an improved navigation system compared to Artemis I.  Its communications capability also has been improved by repositioning antennas on the rocket to ensure continuous communications with NASA ground stations and the U.S. Space Force’s Space Launch Delta 45 which controls launches along the Eastern Range.

An emergency detection system on the ICPS allows the rocket to sense and respond to problems and notify the crew. The flight safety system adds a time delay to the self-destruct system to allow time for Orion’s escape system to pull the capsule to safety in event of an abort.

The separation motors that push the solid rocket booster away after the elements are no longer needed were angled an additional 15 degrees to increase separation clearance as the rest of the rocket speeds by.

Additionally, SLS will jettison the spent boosters four seconds earlier during Artemis II ascent than occurred during Artemis I. Dropping the boosters several seconds closer to the end of their burn will give engineers flight data to correlate with projections that shedding the boosters several seconds sooner will yield approximately 1,600 pounds of payload to Earth orbit for future SLS flights.

Engineers have incorporated additional improvements based on lessons learned from Artemis I. During the Artemis I test flight the SLS rocket experienced higher-than-expected vibrations near the solid rocket booster attachment points that was caused by unsteady airflow.

To steady the airflow, a pair of six-foot-long strakes flanking each booster’s forward connection points on the SLS intertank will smooth vibrations induced by airflow during ascent, and the rocket’s electronics system was requalified to endure higher levels of vibrations.

Engineers updated the core stage power distribution control unit, mounted in the intertank, which controls power to the rocket’s other electronics and protects against electrical hazards.

These improvements have led to an enhanced rocket to support crew as part of NASA’s Golden Age of innovation and exploration.

The approximately 10-day Artemis II test flight is the first crewed flight under NASA’s Artemis campaign. It is another step toward new U.S.-crewed missions on the Moon’s surface that will help the agency prepare to send the first astronauts – Americans – to Mars.

https://www.nasa.gov/artemis

News Media Contact

Jonathan Deal
Marshall Space Flight Center, Huntsville, Ala. 
256.544.0034
jonathan.e.deal@nasa.gov

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Last Updated
Sep 18, 2025
Editor
Lee Mohon
Contact
Jonathan Deal
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