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The Marshall Star for July 17, 2024

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The Marshall Star for July 17, 2024

The core stage of the Artemis Space Launch System being loaded on a covered barge. The stage is a large cylinder shape with the engines facing toward the camera on two yellow transporters that are guiding the stage into a covered grey container in the background. The body of the cylinder is mostly an orange color and white around the bottom. The four engines on the bottom are covered with red material.

NASA Ships Moon Rocket Stage Ahead of First Crewed Artemis Flight

NASA rolled out the SLS (Space Launch System) rocket’s core stage for the Artemis II test flight from its Michoud Assembly Facility on Tuesday for shipment to the agency’s Kennedy Space Center. The rollout is key progress on the path to NASA’s first crewed mission to the Moon under the Artemis campaign.

Using highly specialized transporters, engineers maneuvered the giant core stage from inside Michoud to NASA’s Pegasus barge. The barge will ferry the stage more than 900 miles to Kennedy, where engineers will prepare it in the Vehicle Assembly Building for attachment to other rocket and Orion spacecraft elements.

The core stage of the Artemis Space Launch System being loaded on a covered barge. The stage is a large cylinder shape with the engines facing toward the camera on two yellow transporters that are guiding the stage into a covered grey container in the background. The body of the cylinder is mostly an orange color and white around the bottom. The four engines on the bottom are covered with red material.
Move teams with NASA and Boeing, the SLS core stage lead contractor, position the massive rocket stage for NASA’s SLS rocket on special transporters to strategically guide the flight hardware the 1.3-mile distance from the factory floor onto the agency’s Pegasus barge on July 16. The core stage will be ferried to NASA’s Kennedy Space Center in Florida, where it will be integrated with other parts of the rocket that will power NASA’s Artemis II mission. Pegasus is maintained at NASA’s Michoud Assembly Facility.
Credit: NASA

“With Artemis, we’ve set our sights on doing something big and incredibly complex that will inspire a new generation, advance our scientific endeavors, and move U.S. competitiveness forward,” said Catherine Koerner, associate administrator for NASA’s Exploration Systems Development Mission Directorate at NASA Headquarters. “The SLS rocket is a key component of our efforts to develop a long-term presence at the Moon.”

Technicians moved the SLS rocket stage from inside Michoud on the 55th anniversary of the launch of Apollo 11 on July 16, 1969. The move of the rocket stage for Artemis marks the first time since the Apollo Program that a fully assembled Moon rocket stage for a crewed mission rolled out from Michoud.

The NASA Michoud Assembly Facility workforce and with other agency team members take a “family photo” with the SLS (Space Launch System) core stage for Artemis II in the background on July 16 at Michoud. The core stage will help launch the first crewed flight of NASA’s SLS rocket for the agency’s Artemis II mission.
The NASA Michoud Assembly Facility workforce and with other agency team members take a “family photo” with the SLS (Space Launch System) core stage for Artemis II in the background on July 16 at Michoud. The core stage will help launch the first crewed flight of NASA’s SLS rocket for the agency’s Artemis II mission.
NASA

The SLS rocket’s core stage is the largest NASA has ever produced. At 212 feet tall, it consists of five major elements, including two huge propellant tanks that collectively hold more than 733,000 gallons of super-chilled liquid propellant to feed four RS-25 engines. During launch and flight, the stage will operate for just over eight minutes, producing more than 2 million pounds of thrust to propel four astronauts inside NASA’s Orion spacecraft toward the Moon.

“The delivery of the SLS core stage for Artemis II to Kennedy Space Center signals a shift from manufacturing to launch readiness as teams continue to make progress on hardware for all major elements for future SLS rockets,” said John Honeycutt, SLS program manager at NASA’s Marshall Space Flight Center. “We are motivated by the success of Artemis I and focused on working toward the first crewed flight under Artemis.”

Team members on July 16 move the first core stage that will help launch the first crewed flight of NASA’s SLS (Space Launch System) rocket for the agency’s Artemis II mission. The move marked the first time a fully assembled Moon rocket stage for a crewed mission has rolled out from NASA’s Michoud Assembly Facility in New Orleans since the Apollo Program.
Team members on July 16 move the first core stage that will help launch the first crewed flight of NASA’s SLS (Space Launch System) rocket for the agency’s Artemis II mission. The move marked the first time a fully assembled Moon rocket stage for a crewed mission has rolled out from NASA’s Michoud Assembly Facility in New Orleans since the Apollo Program.
NASA

After arrival at Kennedy, the stage will undergo additional outfitting inside the Vehicle Assembly Building. Engineers then will join it with the segments that form the rocket’s twin solid rocket boosters. Adapters for the Moon rocket that connect it to the Orion spacecraft will be shipped to Kennedy this fall, where the interim cryogenic propulsion stage is already. Engineers at Kennedy continue to prepare Orion and exploration ground systems for launch and flight.

All major structures for every SLS core stage are fully manufactured at Michoud. Inside the factory, core stages and future exploration upper stages for the next evolution of SLS, called the Block 1B configuration, currently are in various phases of production for Artemis III, IV, and V. Beginning with Artemis III, to better optimize space at Michoud, Boeing – the SLS core stage prime contractor – will use space at Kennedy for final assembly and outfitting activities.

Team members at Michoud Assembly Facility load the first core stage that will help launch the first crewed flight of NASA’s SLS (Space Launch System) rocket for the agency’s Artemis II mission onto the Pegasus barge on July 16. The barge will ferry the core stage on a 900-mile journey from the agency’s Michoud Assembly Facility in New Orleans to its Kennedy Space Center in Florida.
Team members at Michoud Assembly Facility load the first core stage that will help launch the first crewed flight of NASA’s SLS (Space Launch System) rocket for the agency’s Artemis II mission onto the Pegasus barge on July 16. The barge will ferry the core stage on a 900-mile journey from the agency’s Michoud Assembly Facility in New Orleans to its Kennedy Space Center in Florida.
NASA

Building, assembling, and transporting the SLS core stage is a collaborative effort for NASA, Boeing, and lead RS-25 engines contractor Aerojet Rocketdyne, an L3Harris Technologies company. All 10 NASA centers contribute to its development with more than 1,100 companies across the United States contributing to its production. 

NASA is working to land the first woman, first person of color, and its first international partner astronaut on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft, supporting ground systems, advanced spacesuits and rovers, the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single launch.

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NASA Barge Preparations for Artemis II Rocket Stage Delivery

Team members installed pedestals aboard NASA’s Pegasus barge to hold and secure the massive core stage of NASA’s SLS (Space Launch System) rocket, preparing NASA barge crews for their first delivery to support the Artemis II test flight around the Moon. The barge ferried the core stage on a 900-mile journey from the agency’s Michoud Assembly Facility to its Kennedy Space Center.

Teams at the agency’s Michoud Assembly Facility in New Orleans are preparing the agency’s Pegasus barge to carry the SLS rocket’s core stage from the agency’s rocket factory to NASA’s Kennedy Space Center in Florida.
Team members at NASA’s Michoud Assembly Facility install pedestals aboard the Pegasus barge to hold and secure the massive core stage of NASA’s SLS (Space Launch System) rocket ahead.
NASA/Eric Bordelon

The Pegasus crew began installing the pedestals July 10. The barge, which previously was used to ferry space shuttle external tanks, was modified and refurbished to compensate for the much larger and heavier core stage for the SLS rocket. Measuring 212 feet in length and 27.6 feet in diameter, the core stage is the largest rocket stage NASA has ever built and the longest item ever shipped by a NASA barge.

Pegasus now measures 310 feet in length and 50 feet in width, with three 200-kilowatt generators on board for power. Tugboats and towing vessels moved the barge and core stage from Michoud to Kennedy, where the core stage will be integrated with other elements of the rocket and prepared for launch. Pegasus is maintained at NASA Michoud.

NASA is working to land the first woman, first person of color, and its first international partner astronaut on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft, supporting ground systems, advanced spacesuits and rovers, the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single launch.

NASA’s Marshall Space Flight Center manages the SLS Program and Michoud.

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Michoud Marks Artemis II Milestone with Employee Event Featuring NASA Astronaut Victor Glover

Moon to Mars Program Deputy Associate Administrator Amit Kshatriya, left, and NASA astronaut Victor Glover, right, speak to Michoud Assembly Facility team members on July 15 as part of a Space Flight Awareness event marking Artemis II’s core stage completion. The core stage was rolled out of Michoud’s rocket factory on July 16 for transportation to NASA’s Kennedy Space Center, where it will be integrated with the Orion spacecraft and the remaining components of the SLS (Space Launch System) rocket.

Moon to Mars Program Deputy Associate Administrator Amit Kshatriya, left, and NASA astronaut Victor Glover, right, speak to Michoud Assembly Facility team members on July 15 as part of a Space Flight Awareness event marking Artemis II’s core stage completion. The core stage was rolled out of Michoud’s rocket factory on July 16 for transportation to NASA’s Kennedy Space Center, where it will be integrated with the Orion spacecraft and the remaining components of the SLS (Space Launch System) rocket. (NASA)

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Tawnya Laughinghouse Named Director of Marshall’s Materials and Processes Laboratory

Tawnya Plummer Laughinghouse has been named to the Senior Executive Service position of director of the Materials and Processes Laboratory in the Engineering Directorate at NASA’s Marshall Space Flight Center, effective July 7.

Tawnya Laughinghouse
Tawnya Plummer Laughinghouse has been named to the Senior Executive Service position of director of the Materials and Processes Laboratory in the Engineering Directorate at NASA’s Marshall Space Flight Center.
NASA

The Materials and Processes Laboratory provides science, technology, and engineering support in materials, processes, and products for use in space vehicle applications, including related ground facilities, test articles and support equipment. As director, Laughinghouse will oversee a workforce of science and engineering experts, as well as several research and development efforts in world-class facilities, including the National Center for Advanced Manufacturing.

Laughinghouse has more than 20 years of experience at NASA holding various technical leadership, supervisory, and programmatic positions. Since October 2018, she has been manager of the Technology Demonstration Missions (TDM) Program for the Agency, managing the implementation of a diverse portfolio of advanced space technology projects led by NASA Centers and industry partners across the nation with a goal to rapidly develop, demonstrate, and infuse revolutionary, high-payoff technologies. Under her leadership, the program helped expand the boundaries of the aerospace enterprise with the launch of 10 advanced technologies to space between 2018 and 2024. In January 2017, she was competitively selected as deputy manager of the TDM Level 2 Program Office within Marshall’s Science and Technology Office.

In 2014, she was selected as a member of the NASA Mid-Level Leadership Program. During that time, she completed a detail at NASA Headquarters supporting an Office of Chief Engineer/Office of Chief Technologist joint study on NASA’s Technology Readiness Assessment (TRA) Process.

Laughinghouse began her NASA career at Marshall in 2004 in the Materials and Processes Laboratory as lead materials engineer for the Space Shuttle Reusable Solid Rocket Motor (RSRM) Booster Separation Motor aft closure assembly. In this role, she also provided technical expertise in advanced materials for high temperature applications and thermal protection systems for solid and liquid rocket propulsion systems. Over the next 12 years, she served the lab in various capacities, including technical lead of the Ceramics & Ablatives team from 2010 to 2016, and developmental assignments such as assistant chief of the Space and Environmental Effects Branch, and chief of the Nonmetallic Materials Branch. Prior to joining Marshall, Laughinghouse spent six years in the U.S. manufacturing industry as a process chemist and product engineer.

Laughinghouse has been awarded the NASA Exceptional Achievement Medal, the NASA Exceptional Service Medal, and a host of group achievement and external awards, including the distinguished Merit Award from the National Alumnae Association of Spelman College in 2021. She has been recognized extensively in the community for her advocacy for women in STEM and mentoring.

A federally certified senior/expert program and project manager, Laughinghouse is a graduate of several leadership programs, including the Office of Personnel Management Federal Executive Institute’s Leadership for a Democratic Society. She is a May 2024 graduate of Leadership Greater Huntsville’s Connect-26 Class.

A native of Columbus, Ohio, Laughinghouse was raised in Huntsville and graduated salutatorian of her class at Sparkman High School in Toney, Alabama. After completing a NASA Summer High School Apprenticeship Research Program (SHARP) internship at Marshall, she applied for the NASA Women in Science and Engineering (WISE) dual-degree program and went on to earn a bachelor’s degree in chemistry and a bachelor’s degree in chemical engineering from Spelman College and the Georgia Institute of Technology, respectively. She also holds a Master of Science in management (concentration in management of technology) from the University of Alabama in Huntsville.

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Marshall Engineers Unveil Versatile, Low-cost Hybrid Engine Testbed

By Rick Smith

In June, engineers at NASA’s Marshall Space Flight Center unveiled an innovative, 11-inch hybrid rocket motor testbed.

The new hybrid testbed, which features variable flow capability and a 20-second continuous burn duration, is designed to provide a low-cost, quick-turnaround solution for conducting hot-fire tests of advanced nozzles and other rocket engine hardware, composite materials, and propellants.

A pair of NASA engineers conduct checkout testing of a new hybrid rocket engine testbed, a long, blue, cylindrical facility for testing new government and industry rocket motor hardware, materials, and propellants at NASA’s Marshall Space Flight Center.
Paul Dumbacher, right, lead test engineer for the Propulsion Test Branch at NASA’s Marshall Space Flight Center, confers with Meredith Patterson, solid propulsion systems engineer, as they install the 11-inch hybrid rocket motor testbed into its cradle in Marshall’s East Test Stand.
NASA/Charles Beason

Solid rocket propulsion remains a competitive, reliable technology for various compact and heavy-lift rockets as well as in-space missions, offering low propulsion element mass, high energy density, resilience in extreme environments, and reliable performance.

“It’s time consuming and costly to put a new solid rocket motor through its paces – identifying how materials perform in extreme temperatures and under severe structural and dynamic loads,” said Benjamin Davis, branch chief of the Solid Propulsion and Pyrotechnic Devices Branch of Marshall’s Engineering Directorate. “In today’s fast-paced, competitive environment, we wanted to find a way to condense that schedule. The hybrid testbed offers an exciting, low-cost solution.”

Initiated in 2020, the project stemmed from NASA’s work to develop new composite materials, additively manufactured – or 3D-printed – nozzles, and other components with proven benefits across the spacefaring spectrum, from rockets to planetary landers.

After analyzing future industry requirements, and with feedback from NASA’s aerospace partners, the Marshall team recognized that their existing 24-inch rocket motor testbed – a subscale version of the Space Launch System booster – could prove too costly for small startups. Additionally, conventional, six-inch test motors limited flexible configuration and required multiple tests to achieve all customer goals. The team realized what industry needed most was an efficient, versatile third option.

“The 11-inch hybrid motor testbed offers the instrumentation, configurability, and cost-efficiency our government, industry, and academic partners need,” said Chloe Bower, subscale solid rocket motor manufacturing lead at Marshall. “It can accomplish multiple test objectives simultaneously – including different nozzle configurations, new instrumentation or internal insulation, and various propellants or flight environments.”

Three female NASA engineers conduct post-test analysis of disassembled, cylindrical components of a new, hybrid rocket motor testbed at NASA’s Marshall Space Flight Center.
Assessing components of the 11-inch hybrid rocket motor testbed in the wake of successful testing are, from left, Chloe Bower, Marshall’s subscale solid rocket motor manufacturing lead; Jacobs manufacturing engineer Shelby Westrich; and Precious Mitchell, Marshall’s solid propulsion design lead.
NASA/Benjamin Davis

“That quicker pace can reduce test time from months to weeks or days,” said Precious Mitchell, solid propulsion design lead for the project.

Another feature of great interest is the on/off switch. “That’s one of the big advantages to a hybrid testbed,” Mitchell said. “With a solid propulsion system, once it’s ignited, it will burn until the fuel is spent. But because there’s no oxidizer in hybrid fuel, we can simply turn it off at any point if we see anomalies or need to fine-tune a test element, yielding more accurate test results that precisely meet customer needs.”

The team expects to deliver to NASA leadership final test data later this summer. For now, Davis congratulates the Marshall propulsion designers, analysts, chemists, materials engineers, safety personnel, and test engineers who collaborated on the new testbed.

“We’re not just supporting the aerospace industry in broad terms,” he said. “We’re also giving young NASA engineers a chance to get their hands dirty in a practical test environment solving problems. This work helps educate new generations who will carry on NASA’s mission in the decades to come.”

For nearly 65 years, Marshall teams have led development of the U.S. space program’s most powerful rocket engines and spacecraft, from the Apollo-era Saturn V rocket and the space shuttle to today’s cutting-edge propulsion systems, including NASA’s newest rocket, the Space Launch System. NASA technology testbeds designed and built by Marshall engineers and their partners have shaped the reliable technologies of spaceflight and continue to enable discovery, testing, and certification of advanced rocket engine materials and manufacturing techniques. 

Smith, an Aeyon/MTS employee, supports the Marshall Office of Communications.

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NASA Honors 25 Years of Chandra at July National Space Club Breakfast

NASA Ships Moon Rocket Stage Ahead of First Crewed Artemis Flight https://www.nasa.gov/news-release/nasa-ships-moon-rocket-stage-ahead-of-first-crewed-artemis-flight/ NASA Marshall Engineers Unveil Versatile, Low-cost Hybrid Engine Testbed https://www.nasa.gov/centers-and-facilities/marshall/nasa-marshall-engineers-unveil-versatile-low-cost-hybrid-engine-testbed/ Take a Summer Cosmic Road Trip With NASA’s Chandra and Webb https://www.nasa.gov/image-article/take-a-summer-cosmic-road-trip-with-nasas-chandra-and-webb/ 55 Years Ago: Apollo 11’s One Small Step, One Giant Leap https://www.nasa.gov/history/55-years-ago-apollo-11s-one-small-step-one-giant-leap/ Two Years Since Webb’s First Images: Celebrating with the Penguin and the Egg Andrew Schnell, acting manager of the Chandra X-ray Observatory at NASA’s Marshall Space Flight Center, honored 25 years of the project’s mission success at National Space Club – Huntsville’s breakfast event on July 16.

Andrew Schnell, acting manager of the Chandra X-ray Observatory at NASA’s Marshall Space Flight Center, honored 25 years of the project’s mission success at National Space Club – Huntsville’s breakfast event on July 16.

Schnell provided insight into Chandra’s history – sharing photos and stories from the project’s initial development, launch, first light images, and some of the most iconic images captured by the telescope to date.

Chandra launched on STS-93 Shuttle Columbia July 23, 1999. Originally designed as a five-year mission, the telescope’s prolonged success is a testament to the agency’s engineering capabilities.

“One of the things that excites me about working with Chandra is that are we not only changing our understanding of the universe today, but the data we collect now may help answer questions astrophysicists haven’t even asked yet.” Schnell said. “One day, an astrophysicist – maybe one that hasn’t been born yet – will have a theory, and our data will be there to help them test that theory.” (Photo Credit: Face to Face Marketing)

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Take a Summer Cosmic Road Trip with NASA’s Chandra and Webb

It’s time to take a cosmic road trip using light as the highway and visit four stunning destinations across space. The vehicles for this space get-away are NASA’s Chandra X-ray Observatory and James Webb Space Telescope.

The first stop on this tour is the closest, Rho Ophiuchi, at a distance of about 390 light-years from Earth. Rho Ophiuchi is a cloud complex filled with gas and stars of different sizes and ages. Being one of the closest star-forming regions, Rho Ophiuchi is a great place for astronomers to study stars. In this image, X-rays from Chandra are purple revealing infant stars that violently flare and produce X-rays. Infrared data from Webb are red, yellow, cyan, light blue and darker blue and provide views of the spectacular regions of gas and dust.

Rho Ophiuchi, a cloud complex filled with gas, and dotted with stars. The murky green and gold cloud resembles a ghostly head in profile, swooping down from the upper left, trailing tendrils of hair. Cutting across the bottom edge and lower righthand corner of the image is a long, narrow, brick red cloud which resembles the ember of a stick pulled from a fire. Several large white stars dot the image. Many are surrounded by glowing neon purple rings, and gleam with diffraction spikes.
The first stop on this tour is the closest, Rho Ophiuchi, at a distance of about 390 light-years from Earth.
X-ray: NASA/CXC/MIT/C. Canizares; IR: NASA/ESA/CSA/STScI/K. Pontoppidan; Image Processing: NASA/ESA/STScI/Alyssa Pagan, NASA/CXC/SAO/L. Frattare and J. Major

The next destination is the Orion Nebula. Still located in the Milky Way galaxy, this region is a little bit farther from our home planet at about 1,500 light-years away. If you look just below the middle of the three stars that make up the “belt” in the constellation of Orion, you may be able to see this nebula through a small telescope. With Chandra and Webb, however, we get to see so much more. Chandra reveals young stars that glow brightly in X-rays, colored in red, green, and blue, while Webb shows the gas and dust in darker red that will help build the next generation of stars here.

chandrawebb3-m42.jpg?w=2048
The Orion Nebula.
X-ray: NASA/CXC/Penn State/E.Fei

It’s time to leave our galaxy and visit another. Like the Milky Way, NGC 3627 is a spiral galaxy that we see at a slight angle. NGC 3627 is known as a “barred” spiral galaxy because of the rectangular shape of its central region. From our vantage point, we can also see two distinct spiral arms that appear as arcs. X-rays from Chandra in purple show evidence for a supermassive black hole in its center while Webb finds the dust, gas, and stars throughout the galaxy in red, green, and blue. This image also contains optical data from the Hubble Space Telescope in red, green, and blue.

The galaxy NGC 3627 appears pitched at an oblique angle, tilted from our upper left down to our lower right. Much of its face is angled toward us, making its spiral arms, composed of red and purple dots, easily identifiable. Several bright white dots ringed with neon purple speckle the galaxy. At the galaxy’s core, where the spiral arms converge, a large white and purple glow identified by Chandra provides evidence of a supermassive black hole.
Spiral galaxy NGC 3627.
X-ray: NASA/CXC/SAO; Optical: NASA/ESO/STScI, ESO/WFI; Infrared: NASA/ESA/CSA/STScI/JWST; Image Processing:/NASA/CXC/SAO/J. Major

Our final landing place on this trip is the farthest and the biggest. MACS J0416 is a galaxy cluster, which are among the largest objects in the Universe held together by gravity. Galaxy clusters like this can contain hundreds or even thousands of individual galaxies all immersed in massive amounts of superheated gas that Chandra can detect. In this view, Chandra’s X-rays in purple show this reservoir of hot gas while Hubble and Webb pick up the individual galaxies in red, green, and blue.

Here is the distant galaxy cluster known as MACS J0416. The blackness of space is packed with glowing dots and tiny shapes, in whites, purples, oranges, golds, and reds, each a distinct galaxy. Upon close inspection (and with a great deal of zooming in!) the spiraling arms of some of the seemingly tiny galaxies are revealed in this highly detailed image. Gently arched across the middle of the frame is a soft band of purple; a reservoir of superheated gas detected by Chandra.
ACS J0416 galaxy cluster.
X-ray: NASA/CXC/SAO/G. Ogrean et al.; Optical/Infrared: (Hubble) NASA/ESA/STScI; IR: (JWST) NASA/ESA/CSA/STScI/Jose M. Diego (IFCA), Jordan C. J. D’Silva (UWA), Anton M. Koekemoer (STScI), Jake Summers (ASU), Rogier Windhorst (ASU), Haojing Yan (University of Missouri)

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

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      Image: NASA, ESA, CSA, STScI; Science: Emma Lieb (University of Denver), Ryan Lau (NSF NOIRLab), Jennifer Hoffman (University of Denver) Astronomers have long tried to track down how elements like carbon, which is essential for life, become widely distributed across the universe. Now, NASA’s James Webb Space Telescope has examined one ongoing source of carbon-rich dust in our own Milky Way galaxy in greater detail: Wolf-Rayet 140, a system of two massive stars that follow a tight, elongated orbit.
      As they swing past one another (within the central white dot in the Webb images), the stellar winds from each star slam together, the material compresses, and carbon-rich dust forms. Webb’s latest observations show 17 dust shells shining in mid-infrared light that are expanding at regular intervals into the surrounding space.
      Image A: Compare Observations of Wolf-Rayet 140 (MIRI Images)
      Two mid-infrared images from NASA’s James Webb Space Telescope of Wolf-Rayet 140 show carbon-rich dust moving in space. At right, the two triangles from the main images are matched up to show how much difference 14 months makes: The dust is racing away from the central stars at almost 1% the speed of light. These stars are 5,000 light-years away in our own Milky Way galaxy. Image: NASA, ESA, CSA, STScI; Science: Emma Lieb (University of Denver), Ryan Lau (NSF NOIRLab), Jennifer Hoffman (University of Denver) “The telescope not only confirmed that these dust shells are real, its data also showed that the dust shells are moving outward at consistent velocities, revealing visible changes over incredibly short periods of time,” said Emma Lieb, the lead author of the new paper and a doctoral student at the University of Denver in Colorado.
      Every shell is racing away from the stars at more than 1,600 miles per second (2,600 kilometers per second), almost 1% the speed of light. “We are used to thinking about events in space taking place slowly, over millions or billions of years,” added Jennifer Hoffman, a co-author and a professor at the University of Denver. “In this system, the observatory is showing that the dust shells are expanding from one year to the next.”
      Like clockwork, the stars’ winds generate dust for several months every eight years, as the pair make their closest approach during a wide, elongated orbit. Webb also shows how dust formation varies — look for the darker region at top left in both images.
      Video A: Fade Between 2022 and 2023 Observations of Wolf-Rayet 140
      This video alternates between two mid-infrared light observations from NASA’s James Webb Space Telescope of Wolf-Rayet 140. Over only 14 months, Webb showed the dust in the system has expanded. This two-star system has sent out more than 17 shells of dust over 130 years. Video: NASA, ESA, CSA, STScI.; Science: Emma Lieb (University of Denver), Ryan Lau (NSF NOIRLab), Jennifer Hoffman (University of Denver) Video B: Stars’ Orbits in Wolf-Rayet 140 (Visualization)
      When the two massive stars in Wolf-Rayet 140 swing past one another, their winds collide, material compresses, and carbon-rich dust forms. The stronger winds of the hotter star in the Wolf-Rayet system blow behind its slightly cooler (but still hot) companion. The stars create dust for several months in every eight-year orbit.
      Video: NASA, ESA, CSA, Joseph Olmsted (STScI). The telescope’s mid-infrared images detected shells that have persisted for more than 130 years. (Older shells have dissipated enough that they are now too dim to detect.) The researchers speculate that the stars will ultimately generate tens of thousands of dust shells over hundreds of thousands of years.
      “Mid-infrared observations are absolutely crucial for this analysis, since the dust in this system is fairly cool. Near-infrared and visible light would only show the shells that are closest to the star,” explained Ryan Lau, a co-author and astronomer at NSF NOIRLab in Tuscon, Arizona, who led the initial research about this system. “With these incredible new details, the telescope is also allowing us to study exactly when the stars are forming dust — almost to the day.”
      The dust’s distribution isn’t uniform. Though this isn’t obvious at first glance, zooming in on the shells in Webb’s images reveals that some of the dust has “piled up,” forming amorphous, delicate clouds that are as large as our entire solar system. Many other individual dust particles float freely. Every speck is as small as one-hundredth the width of a human hair. Clumpy or not, all of the dust moves at the same speed and is carbon rich.
      The Future of This System
      What will happen to these stars over millions or billions of years, after they are finished “spraying” their surroundings with dust? The Wolf-Rayet star in this system is 10 times more massive than the Sun and nearing the end of its life. In its final “act,” this star will either explode as a supernova — possibly blasting away some or all of the dust shells — or collapse into a black hole, which would leave the dust shells intact.
      Though no one can predict with any certainty what will happen, researchers are rooting for the black hole scenario. “A major question in astronomy is, where does all the dust in the universe come from?” Lau said. “If carbon-rich dust like this survives, it could help us begin to answer that question.”
      “We know carbon is necessary for the formation of rocky planets and solar systems like ours,” Hoffman added. “It’s exciting to get a glimpse into how binary star systems not only create carbon-rich dust, but also propel it into our galactic neighborhood.”
      These results have been published in the Astrophysical Journal Letters and were presented in a press conference at the 245th meeting of the American Astronomical Society in National Harbor, Maryland.
      The James Webb Space Telescope is the world’s premier space science observatory. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.
      Downloads
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      View/Download all image products at all resolutions for this article from the Space Telescope Science Institute.
      View/Download the research results from the Astrophysical Journal Letters.
      Media Contacts
      Laura Betz – laura.e.betz@nasa.gov
      NASA’s Goddard Space Flight Center, Greenbelt, Md.
      Claire Blome – cblome@stsci.edu, Christine Pulliam – cpulliam@stsci.edu
      Space Telescope Science Institute, Baltimore, Md.
      Science – Emma Lieb (University of Denver)
      Related Information
      Webb Blog: Learn more about WR 140
      Infographic: Choose your path: Destiny of Dust
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      Last Updated Jan 13, 2025 Editor Marty McCoy Contact Laura Betz laura.e.betz@nasa.gov Related Terms
      Astrophysics Binary Stars Goddard Space Flight Center James Webb Space Telescope (JWST) Nebulae Science & Research Stars The Milky Way The Universe View the full article
    • NASA
      Aumentan las temperaturas: La NASA confirma que el 2024 fue el año más cálido registrado
      By NASA
      Este mapa de la Tierra en 2024 muestra las anomalías de la temperatura global de la superficie, es decir, cuánto más caliente o más fría estuvo cada región del planeta en comparación con el promedio de 1951 a 1980. Las temperaturas normales se muestran en blanco, las superiores a las normales en rojo y naranja, y las inferiores a las normales en azul. Una versión animada de este mapa muestra la evolución de las anomalías de la temperatura global a lo largo del tiempo, desde 1880. Descarga esta visualización del Estudio de Visualización Científica del Centro Goddard de la NASA: https://svs.gsfc.nasa.gov/5450.Crédito: Estudio de Visualización Científica de la NASA Read this release in English here.
      En el año 2024, la temperatura promedio de la superficie de la Tierra fue la más cálida que se haya registrado, según un análisis liderado por científicos de la NASA.
      “Una vez más, se ha batido el récord de temperatura: 2024 fue el año más cálido desde que se empezaron a llevar registros en 1880”, dijo el administrador de la NASA, Bill Nelson. “Entre las temperaturas récord y los incendios forestales que amenazan actualmente nuestros centros y personal en California, nunca ha sido más importante entender nuestro planeta cambiante”.
      Las temperaturas globales del 2024 estuvieron 2,30 grados Fahrenheit (1,28 grados Celsius) por encima del promedio para el período de referencia de la NASA (de 1951 a 1980), superando el récord establecido en 2023. El nuevo máximo histórico llega después de 15 meses consecutivos (junio de 2023 a agosto de 2024) de récords de temperaturas mensuales, una racha de calor sin precedentes.
      Científicos de la NASA también estiman que en el 2024 la Tierra estuvo alrededor de 2,65 grados Fahrenheit (1,47 grados Celsius) más cálida que el promedio de mediados del siglo XIX (1850-1900). Durante más de la mitad del 2024, las temperaturas promedio superaron en 1,5 grados Celsius el nivel de referencia, y el promedio anual, con incertidumbres matemáticas, podría haber superado el nivel por primera vez.
      “El Acuerdo de París sobre el cambio climático establece esfuerzos para mantenerse por debajo del nivel de 1,5 grados a largo plazo. Para poner eso en perspectiva, las temperaturas durante los períodos cálidos en la Tierra hace tres millones de años —cuando el nivel del mar era decenas de metros más alto que hoy— eran solo unos 3 grados Celsius más cálidos que los niveles preindustriales”, dijo Gavin Schmidt, director del Instituto Goddard de Investigaciones Espaciales (GISS, por sus siglas en inglés) de la NASA en Nueva York. “Estamos a medio camino de alcanzar niveles de calor del Plioceno en apenas 150 años”.
      Los científicos han concluido que la tendencia al calentamiento de las últimas décadas está siendo impulsada por el dióxido de carbono, el metano y otros gases de efecto invernadero que atrapan el calor. Según un análisis internacional reciente, en 2022 y 2023 la Tierra registró un aumento récord de las emisiones de dióxido de carbono procedentes de combustibles fósiles. La concentración de dióxido de carbono en la atmósfera ha aumentado desde los niveles preindustriales en el siglo XVIII de aproximadamente 278 partes por millón a alrededor de 420 partes por millón en la actualidad.
      La NASA y otras agencias federales recopilan regularmente datos sobre las concentraciones y emisiones de gases de efecto invernadero. Estos datos están disponibles en el Centro de Gases de Efecto Invernadero de Estados Unidos, una iniciativa de múltiples instituciones que consolida la información procedente de observaciones y modelos, con el fin de ofrecer a los responsables de la toma de decisiones un único punto de acceso a datos y análisis.
      Tendencias de calor excepcional
      Las temperaturas de cada año pueden verse influidas por fluctuaciones climáticas naturales como El Niño y La Niña, que alternativamente calientan y enfrían el océano Pacífico tropical. El fuerte fenómeno de El Niño que comenzó en el otoño boreal de 2023 contribuyó a que las temperaturas mundiales superaran los récords anteriores.
      La ola de calor que comenzó en 2023 siguió superando las expectativas en 2024, según Schmidt, a pesar de que El Niño remitió. Los investigadores están trabajando en la identificación de los factores que contribuyen a este fenómeno, incluidos los posibles efectos climáticos de la erupción volcánica de Tonga de enero de 2022 y de las reducciones de la contaminación, que pueden cambiar la cubierta de nubes y la forma en que la energía solar se refleja hacia el espacio.
      “No en todos los años se van a batir récords, pero la tendencia a largo plazo es clara”, dijo Schmidt. “Ya estamos viendo el impacto en las precipitaciones extremas, las olas de calor y el aumento del riesgo de inundaciones, que van a seguir empeorando mientras continúen las emisiones”.
      Cambios a nivel local
      La NASA elabora su registro de temperaturas a partir de los datos de temperatura del aire en superficie recolectados por decenas de miles de estaciones meteorológicas, así como de los datos de temperatura de la superficie del mar adquiridos por instrumentos en barcos y boyas. Para el análisis de estos datos, se emplean métodos que toman en consideración el espaciamiento variado de las estaciones de temperatura a nivel global y los efectos del calentamiento urbano que podrían sesgar los cálculos.
      Una nueva evaluación publicada a principios de este año por científicos de la Escuela de Minas de Colorado, la Fundación Nacional para las Ciencias, la Administración Nacional Oceánica y Atmosférica (NOAA, por sus siglas en inglés) y la NASA provee aún más confianza en los datos de temperatura global y regional de la agencia.
      “Cuando se producen cambios en el clima, primero se ven en la media mundial, luego se ven a nivel continental y después a nivel regional. Ahora lo estamos viendo a nivel local”, dijo Schmidt. “Los cambios que se están produciendo en las experiencias meteorológicas cotidianas de la gente se han hecho muy evidentes”.
      Los análisis independientes de la NOAA, Berkeley Earth, el Centro Hadley (parte de la Oficina Meteorológica del Reino Unido, Met Office) y el Servicio de Cambio Climático de Copernicus en Europa también han concluido que las temperaturas de la superficie global para 2024 fueron las más altas desde que comenzaron los registros modernos. Estos científicos utilizan gran parte de los mismos datos de temperatura en sus análisis, pero emplean metodologías y modelos diferentes. Todos muestran la misma tendencia al calentamiento.
      El conjunto completo de datos de la NASA sobre las temperaturas de la superficie global, así como los detalles (en inglés) de cómo los científicos de la NASA llevaron a cabo el análisis, están a disposición del público en GISS, un laboratorio de la NASA gestionado por el Centro de Vuelo Espacial Goddard de la agencia en Greenbelt, Maryland.
      Para más información (en inglés) sobre los programas de ciencias de la Tierra de la NASA, visita:
      https://www.nasa.gov/earth
      -fin-
      María José Viñas / Liz Vlock
      Sede, Washington
      240-458-0248 / 202-358-1600
      maria-jose.vinasgarcia@nasa.gov / elizabeth.a.vlock@nasa.gov
      Peter Jacobs
      Centro de Vuelo Espacial Goddard, Greenbelt, MD.
      301-286-0535
      peter.jacobs@nasa.gov
      View the full article
    • NASA
      Temperatures Rising: NASA Confirms 2024 Warmest Year on Record
      By NASA
      This map of Earth in 2024 shows global surface temperature anomalies, or how much warmer or cooler each region of the planet was compared to the average from 1951 to 1980. Normal temperatures are shown in white, higher-than-normal temperatures in red and orange, and lower-than-normal temperatures in blue. An animated version of this map shows global temperature anomalies changing over time, dating back to 1880. Download this visualization from NASA Goddard’s Scientific Visualization Studio: https://svs.gsfc.nasa.gov/5450. Credit: NASA’s Scientific Visualization Studio Earth’s average surface temperature in 2024 was the warmest on record, according to an analysis led by NASA scientists.
      Global temperatures in 2024 were 2.30 degrees Fahrenheit (1.28 degrees Celsius) above the agency’s 20th-century baseline (1951-1980), which tops the record set in 2023. The new record comes after 15 consecutive months (June 2023 through August 2024) of monthly temperature records — an unprecedented heat streak.
      “Once again, the temperature record has been shattered — 2024 was the hottest year since record keeping began in 1880,” said NASA Administrator Bill Nelson. “Between record breaking temperatures and wildfires currently threatening our centers and workforce in California, it has never been more important to understand our changing planet.”
      NASA scientists further estimate Earth in 2024 was about 2.65 degrees Fahrenheit (1.47 degrees Celsius) warmer than the mid-19th century average (1850-1900). For more than half of 2024, average temperatures were more than 1.5 degrees Celsius above the baseline, and the annual average, with mathematical uncertainties, may have exceeded the level for the first time.
      “The Paris Agreement on climate change sets forth efforts to remain below 1.5 degrees Celsius over the long term. To put that in perspective, temperatures during the warm periods on Earth three million years ago — when sea levels were dozens of feet higher than today — were only around 3 degrees Celsius warmer than pre-industrial levels,” said Gavin Schmidt, director of NASA’s Goddard Institute for Space Studies (GISS) in New York. “We are halfway to Pliocene-level warmth in just 150 years.”
      Scientists have concluded the warming trend of recent decades is driven by heat-trapping carbon dioxide, methane, and other greenhouse gases. In 2022 and 2023, Earth saw record increases in carbon dioxide emissions from fossil fuels, according to a recent international analysis. The concentration of carbon dioxide in the atmosphere has increased from pre-industrial levels in the 18th century of approximately 278 parts per million to about  420 parts per million today.
      NASA and other federal agencies regularly collect data on greenhouse gas concentrations and emissions. These data are available at the U.S. Greenhouse Gas Center, a multi-agency effort that consolidates information from observations and models, with a goal of providing decision-makers with one location for data and analysis.
      Exceptional heat trends
      The temperatures of individual years can be influenced by natural climate fluctuations such as El Niño and La Niña, which alternately warm and cool the tropical Pacific Ocean. The strong El Niño that began in fall 2023 helped nudge global temperatures above previous records.
      The heat surge that began in 2023 continued to exceed expectations in 2024, Schmidt said, even though El Niño abated. Researchers are working to identify contributing factors, including possible climate impacts of the January 2022 Tonga volcanic eruption and reductions in pollution, which may change cloud cover and how solar energy is reflected back into space.
      “Not every year is going to break records, but the long-term trend is clear,” Schmidt said. “We’re already seeing the impact in extreme rainfall, heat waves, and increased flood risk, which are going to keep getting worse as long as emissions continue.”
      Seeing changes locally
      NASA assembles its temperature record using surface air temperature data collected from tens of thousands of meteorological stations, as well as sea surface temperature data acquired by ship- and buoy-based instruments. This data is analyzed using methods that account for the varied spacing of temperature stations around the globe and for urban heating effects that could skew the calculations.
      A new assessment published earlier this year by scientists at the Colorado School of Mines, National Science Foundation, the National Atmospheric and Oceanic Administration (NOAA), and NASA further increases confidence in the agency’s global and regional temperature data.
      “When changes happen in the climate, you see it first in the global mean, then you see it at the continental scale and then at the regional scale. Now, we’re seeing it at the local level,” Schmidt said. “The changes occurring in people’s everyday weather experiences have become abundantly clear.”
      Independent analyses by NOAA, Berkeley Earth, the Hadley Centre (part of the United Kingdom’s weather forecasting Met Office) and Copernicus Climate Services in Europe have also concluded that the global surface temperatures for 2024 were the highest since modern record-keeping began. These scientists use much of the same temperature data in their analyses but use different methodologies and models. Each shows the same ongoing warming trend.
      NASA’s full dataset of global surface temperatures, as well as details of how NASA scientists conducted the analysis, are publicly available from GISS, a NASA laboratory managed by the agency’s Goddard Space Flight Center in Greenbelt, Maryland.
      For more information about NASA’s Earth science programs, visit: 
      https://www.nasa.gov/earth
      -end-
      Liz Vlock
      Headquarters, Washington
      202-358-1600
      elizabeth.a.vlock@nasa.gov

      Peter Jacobs
      Goddard Space Flight Center, Greenbelt, Md.
      301-286-0535
      peter.jacobs@nasa.gov
      View the full article

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