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By NASA
Continuing his engagement to deepen international collaboration and promote the peaceful use of space, NASA Administrator Bill Nelson will travel to Lima on Wednesday.
Nelson will meet with Maj. Gen. Roberto Melgar Sheen, director of Peru’s National Commission for Aerospace Research and Development (CONIDA) Thursday, Nov. 14, and sign a non-binding memorandum of understanding to enhance space cooperation. The memorandum of understanding between NASA and CONIDA will include safety training, a joint feasibility study for a potential sounding rockets campaign, and technical assistance for CONIDA on sounding rocket launches.
Nelson will discuss the importance of international partnerships and collaboration in space and celebrate Peru’s signing of the Artemis Accords earlier this year.
For more information about NASA’s international partnerships, visit:
https://www.nasa.gov/oiir
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Meira Bernstein
Headquarters, Washington
202-615-1747
meira.b.bernstein@nasa.gov
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Coastal locations, such as Drakes Bay on the Point Reyes peninsula in Northern California, are increasingly vulnerable to sea level rise.NOAA/NMFS/WCR/CCO The information will help people who live in coastal areas prepare for impacts caused by rising sea levels.
Earth’s ocean is rising, disrupting livelihoods and infrastructure in coastal communities around the world. Agencies and organizations are working to prepare people as their world changes around them, and NASA information is helping these efforts.
The agency’s global data is now available in the sea level section of the Earth Information Center. NASA developed the global sea level change website in collaboration with the U.S. Department of Defense, the World Bank, the U.S. Department of State, and the United Nations Development Programme.
The site includes information on projected sea level rise through the year 2150 for coastlines around the world, as well as estimates of how much flooding a coastal community or region can expect to see in the next 30 years. The projections come from data collected by NASA and its partners and from computer models of ice sheets and the ocean, as well as the latest sea level assessment from the Intergovernmental Panel on Climate Change, and other sources.
“NASA innovates for the benefit of humanity. Our cutting-edge instruments and data-driven information tools help communities and organizations respond to natural hazards and extreme weather, and inform critical coastal infrastructure planning decisions,” said Karen St. Germain, director of the Earth science division at NASA Headquarters in Washington.
Information to Action
International organizations such as the World Bank will use the data from the global sea level change site for tasks including the creation of Climate Risk Profiles for countries especially vulnerable to sea level rise.
The Defense Department will continue to incorporate sea level rise data into its plans to anticipate and respond to hazards posed to its facilities by the effects of rising oceans. Similarly, the State Department uses the information for activities ranging from disaster preparedness to long-term adaptation planning to supporting partners around the world in related efforts.
“We are at a moment of truth in our fight against the climate crisis. The science is unequivocal and must serve as the bedrock upon which decision-making is built. With many communities around the world already facing severe impacts from sea-level rise, this new resource provides a vital tool to help them protect lives and livelihoods. It also illustrates what is at stake between a 1.5-degree-Celsius world and a current-policies trajectory for all coastal communities worldwide,” said Assistant Secretary-General Selwin Hart, special adviser to the United Nations secretary-general on climate action and just transition.
Rising Faster
NASA-led data analyses have revealed that between 1970 and 2023, 96% of countries with coastlines have experienced sea level rise. The rate of that global rise has also accelerated, more than doubling from 0.08 inches (0.21 centimeters) per year in 1993 to about 0.18 inches (0.45 centimeters) per year in 2023.
As the rate of sea level rise increases, millions of people could face the related effects sooner than previously projected, including larger storm surges, more saltwater intrusion into groundwater, and additional high-tide flood days — also known as nuisance floods or sunny day floods.
“This new platform shows the timing of future floods and the magnitude of rising waters in all coastal countries worldwide, connecting science and physics to impacts on people’s livelihoods and safety,” said Nadya Vinogradova Shiffer, director of the ocean physics program at NASA Headquarters in Washington.
Data released earlier this year found that Pacific Island nations will experience at least 6 inches (15 centimeters) of sea level rise in the next 30 years. The number of high-tide flood days will increase by an order of magnitude for nearly all Pacific Island nations by the 2050s.
“The data is clear: Sea levels are rising around the world, and they’re rising faster and faster,” said Ben Hamlington, a sea level researcher at NASA’s Jet Propulsion Laboratory in Southern California and head of the agency’s sea level change science team. “Having the best information to make decisions about how to plan for rising seas is more crucial than ever.”
To explore the global sea level change site:
https://earth.gov/sealevel
News Media Contacts
Karen Fox / Elizabeth Vlock
NASA Headquarters, Washington
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karen.c.fox@nasa.gov / elizabeth.a.vlock@nasa.gov
Jane J. Lee / Andrew Wang
Jet Propulsion Laboratory, Pasadena, Calif.
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jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov
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Last Updated Nov 13, 2024 Related Terms
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By NASA
5 Min Read Wearable Tech for Space Station Research
A wearable monitoring device is visible on the left wrist of NASA astronaut Jeanette Epps. Credits: NASA Science in Space Nov 2024
Many of us wear devices that count our steps, measure our heart rate, track sleep patterns, and more. This information can help us make healthy decisions – research shows the devices encourage people to move more, for example – and could flag possible problems, such as an irregular heartbeat.
Wearable monitors also have become common tools for research on human health, including studies on the International Space Station. Astronauts have worn special watches, headbands, vests, and other devices to help scientists examine sleep quality, effectiveness of exercise, heart health, and more.
Warm to the core
Spaceflight can affect body temperature regulation and daily rhythms due to factors such as the absence of convection (a natural process that transfers heat away from the body) and changes in the cardiovascular and metabolic systems.
A current investigation from ESA (European Space Agency), Thermo-Mini or T-Mini examines how the body regulates its core temperature during spaceflight. The study uses a non-invasive headband monitor that astronauts can wear for hours at a time. Data from the monitor allow researchers to determine the effect on body temperature from environmental and physiological factors such as room temperature and humidity, time of day, and physical stress. The same type of sensor already is used on Earth for research in clinical environments, such as improving incubators, and studies of how hotter environments affect human health.
Thermolab, an earlier ESA investigation, examined thermoregulatory and cardiovascular adaptations during rest and exercise in microgravity. Researchers found that core body temperature rises higher and faster during exercise in space than on Earth and that the increase was sustained during rest, a phenomenon that could affect the health of crew members on long-term spaceflight. The finding also raises questions about the thermoregulatory set point humans are assumed to have as well as our ability to adapt to climate change on Earth.
NASA astronaut Nick Hague wears the T-mini device while exercising.NASA To sleep, perchance to dream
Spaceflight is known to disrupt sleep-wake patterns. Actiwatch Spectrum, a device worn on the wrist, contains an accelerometer to measure motion and photodetectors to monitor ambient lighting. It is an upgrade of previous technology used on the space station to monitor the length and quality of crew member sleep. Data from earlier missions show that crew members slept significantly less during spaceflight than before and after. The Actiwatch Sleep-Long investigation used an earlier version of the device to examine how ambient light affects the sleep-wake cycle and found an association between sleep deficiency and changes during spaceflight in circadian patterns, or the body’s response to a normal 24-hour light and dark cycle. Follow up studies are testing lighting systems to address these effects and help astronauts maintain healthy circadian rhythms.
NASA astronaut Sunita Williams wears an Actiwatch as she conducts research.NASA Wearable Monitoring tested a lightweight vest with embedded sensors to monitor heart rate and breathing patterns during sleep and help determine whether changes in heart activity affect sleep quality. The technology offers a significant advantage by monitoring heart activity without waking the test subject and could help patients on Earth with sleep disorders. Researchers reported positive performance and good quality of recorded signals, suggesting that the vest can contribute to comprehensive monitoring of individual health on future spaceflight and in some settings on Earth as well.
These and other studies support development of countermeasures to improve sleep for crew members, helping to maintain alertness and lessen fatigue during missions.
(Not) waiting to exhale
Humans exhale carbon dioxide and too much of it can build up in closed environments, causing headaches, dizziness, and other symptoms. Spacecraft have systems to remove this substance from cabin air, but pockets of carbon dioxide can form and be difficult to detect and remove. Personal CO2 Monitor tested specially designed sensors attached to clothing to monitor the wearer’s immediate surroundings. Researchers reported that the devices functioned adequately as either crew-worn or static monitors, an important step toward using them to determine how carbon dioxide behaves in enclosed systems like spacecraft.
One of the wearable carbon dioxide monitors clipped to the wall near a crew sleeping compartment. Radiation in real time
EVARM, an investigation from CSA (Canadian Space Agency), used small wireless dosimeters carried in a pocket to measure radiation exposure during spacewalks. The data showed that this method is a feasible way to measure radiation exposure, which could help focus routine dosage monitoring where it is most needed. Any shielding and countermeasures developed also could help protect people who work in high-radiation areas on Earth.
ESA’s Active Dosimeter tested a radiation dosimeter worn by crew members to measure changes in their exposure over time based on the space station’s orbit and altitude, the solar cycle, and solar flares. Measurements from the device allowed researchers to analyze radiation dosage across an entire space mission.
ESA astronaut Thomas Pesquet holds one of the mobile units for the Active Dosimeter study.NASA The Active Dosimeter also was among the instruments used to measure radiation on NASA’s Orion spacecraft during its 25.5-day uncrewed Artemis I mission around the Moon and back in 2022.
Another device tested on the space station and then on Artemis I, AstroRad Vest is designed to protect astronauts from solar particle events. Researchers used these and other radiation measuring devices to show that Orion’s design can protect its crew from potentially hazardous radiation levels during lunar missions.
The International Space Station serves as an important testbed for these technologies and many others being developed for future missions to the Moon and beyond.
Melissa Gaskill
International Space Station Research Communications Team
Johnson Space Center
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Note: The following article is part of a series highlighting propulsion testing at NASA’s Stennis Space Center. To access the entire series, please visit: https://www.nasa.gov/feature/propulsion-powering-space-dreams/.
Workers making way for NASA’s Stennis Space Center near Bay St. Louis, Mississippi, likely did not realize they were building something that would not only withstand the test of time but transcend it.
Mosquitoes, snakes, hurricanes, and intense south Mississippi heat – early crews faced all with a spirit of resilience and adaptability that remains a hallmark characteristic of NASA Stennis six decades later.
“From going to the Moon for the first time and now returning to the Moon, you can trace a straight line of propulsion testing at NASA Stennis,” said Maury Vander, chief of the NASA Stennis Test Operations Division. “We still stand on the front lines of support for this country’s space program.”
For five decades and counting, the versatile NASA Stennis test stands have been used for stage, engine, and component testing on multiple NASA and commercial projects.
A Sept. 25, 2012, aerial image shows the three propulsion test areas at NASA’s Stennis Space Center – the E Test Complex (with 12 active test cell positions capable of component, engine, and stage test activities) in the foreground, the A Test Complex (featuring the Fred Haise, A-2, and A-3 stands for large engine testing) in the middle, and the Thad Cochran Test Stand (B-1/B-2) that can support both engine and stage testing in the background.NASA/Stennis The Fred Haise Test Stand (formerly the A-1 Test Stand), pictured on Oct. 6, 2020, at NASA’s Stennis Space Center, tests RS-25 flight engines to help power NASA’s powerful SLS (Space Launch System). NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the A-2 Test Stand at NASA’s Stennis Space Center – then-Mississippi Test Facility – on April 17, 1966. Less than a week later, south Mississippi would be fully ushered into the Apollo era with the site’s first-ever hot fire test. NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the A-3 Test Stand at NASA’s Stennis Space Center on March 29, 2013. The test stand area now is under lease to Rocket Lab for commercial operations. NOTE: Right click on photo to open full image in new tab.NASA/Stennis An image shows the Thad Cochran Test Stand (B-1/B-2) at NASA’s Stennis Space Center on Dec. 31, 2014, during buildout for testing the core stage of NASA’s SLS (Space Launch System) rocket. NASA/Stennis An aerial image shows the Thad Cochran Test Stand (B-1/B-2) at NASA’s Stennis Space Center on Feb. 22, 2017, following core stage buildout of the test stand for future SLS (Space Launch System) testing. NASA/Stennis Three NASA Stennis stands – Fred Haise (formerly the A-1 Test Stand), A-2, and Thad Cochran (B-1/B-2) – date to the 1960s, when they were built to test Saturn V rocket stages for Apollo missions to the Moon. The Fred Haise and A-2 stand were single-position stands for testing one Saturn V second stage at a time. The Thad Cochran featured two positions – (B-1 and B-2) – that could each house a Saturn V first stage, although only the B-2 position was used during Apollo testing.
When the Apollo Program ended, the Fred Haise, A-2, and Thad Cochran (B-1) stands were modified to test single engines rather than rocket stages. All three were used in subsequent years to test space shuttle main engines and others.
Meanwhile, the Thad Cochran (B-2) stand was maintained for full stage testing. The space shuttle Main Propulsion Test Article was tested on the stand, as was the Common Core Booster for the Delta IV rocket. Most recently, the stand was used to test the first SLS (Space Launch System) stage that helped launch the Artemis I mission in 2022.
In 2024, the Fred Haise Test Stand is dedicated to RS-25 engine testing for NASA’s Artemis initiative. Every RS-25 engine that will help launch an SLS rocket during Artemis will be tested on the stand. The A-2 stand has been leased to Relativity Space, which is modifying it to support stage testing for its new rocket. In 2023, the Thad Cochran (B-1) stand concluded more than 20 years of RS-68 testing for Aerojet Rocketdyne (now known as L3Harris) and now is open for commercial use. The Thad Cochran (B-2) stand is being prepared to test NASA’s new SLS exploration upper stage before it flies on a future Artemis mission.
“When you think about the work at NASA Stennis, this is a place that helps write history,” Vander said. “And in a sense, these test stands are timeless, still operating as designed 60 years after they were built, so there is more history yet to come.”
NASA Stennis also constructed a fourth large test structure in the 2010s. The A-3 Test Stand is uniquely designed to simulate high altitudes up to 100,000 feet for testing engines and stages that need to fire in space. Rocket Lab currently leases the A-3 Test Stand area for construction of its Archimedes Test Complex.
Crews deliver the first RS-25 flight engine, engine No. 2059, to the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center on Nov. 4, 2015. The engine was tested to certify it for use on NASA’s powerful SLS (Space Launch System) rocket. NASA/Stennis An image shows a space shuttle main engine test on the A-2 Test Stand at NASA’s Stennis Space Center on July 21, 2003. NASA/Stennis The A-3 Test Stand, designed to test fire next-generation engines at simulated altitudes up to 100,000 feet, undergoes an activation test on Feb. 24, 2014.NASA/Stennis NASA Stennis also operates a smaller test area to conduct component, subsystem, and system level testing. The area is now known as the E Test Complex and features four facilities, all developed from the late 1980s to the early 1990s.
Construction of the E-1 Test Stand, then known as the Component Test Facility, began to support a joint project involving NASA and the U.S. Air Force project. Although the project was canceled, a second joint endeavor allowed completion of the test facility.
Development of the E-2 Test Stand, originally known as the High Heat Flux Facility, began to support the National Aerospace Plane project. Following cancelation of the project, the facility was completed to support testing for component and engine development efforts.
An E-3 Test Facility was constructed to support various component and small/subscale engine and booster test projects. Relativity Space leased a partially developed E-4 test area in 2018 and has since completed construction to support its commercial testing.
All in all, the E Test Complex stands feature 12 active cells capable of various component and engine testing. The versatility of the complex infrastructure and test team allows it to support test projects for a range of commercial aerospace companies, large and small. Currently, both E-2 cells 1 and 2 are leased to Relativity Space through 2028.
An aerial image shows the E-1 Test Stand at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis An aerial image shows the E-3 test area at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis An aerial image shows the E-2 Test Stand (Cell 1) at NASA’s Stennis Space Center on May 19, 2015. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities. NASA/Stennis “These facilities really do not exist anywhere else in the United States,” said Kevin Power, assistant director, Office of Project Management in the NASA Stennis Engineering and Test Directorate. “Customers come to us with requirements for certain tests of an article, and we look at what is the best place to test it based on the facility infrastructure. We have completed component level testing, all the way up to full engines.”
The list of companies who have conducted – or are now conducting – propulsion projects in the E Test Complex reads like a who’s who of commercial aerospace leaders.
“The E Complex illustrates the NASA Stennis story,” Power said. “We have very valuable infrastructure and resources, chief of which is the test team, who adapt to benefit NASA and meet the needs of the growing commercial aerospace industry.”
For information about NASA’s Stennis Space Center, visit:
Stennis Space Center – NASA
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Last Updated Nov 13, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Note: The following article is part of a series highlighting propulsion testing at NASA’s Stennis Space Center. To access the entire series, please visit: https://www.nasa.gov/feature/propulsion-powering-space-dreams/.
An aerial image from 1965 shows the dual flame trenches of the Thad Cochran Test Stand (B-1/B-2) under construction at NASA’s Stennis Space Center (then known as Mississippi Test Operations) taking shape.NASA/Stennis Since the United States sent the first humans to the Moon more than 60 years ago, NASA’s Stennis Space Center near Bay St. Louis, Mississippi, has answered the call to help power the nation’s space dreams.
“History shows NASA Stennis is the country’s premier rocket engine test site and the go-to place for propulsion testing,” NASA Stennis Director John Bailey said. “It started with Apollo and continued through space shuttle. Now, we are going back to the Moon and beyond with Artemis – and it all comes through NASA Stennis.”
As the nation raced to send the first humans to the Moon, NASA selected a remote location in Hancock County, Mississippi, in October 1961 to test the needed rocket stages. Thanks to a massive construction project, the site conducted its first Saturn V rocket stage test in April 1966. In the next four-plus years, NASA Stennis tested 27 Saturn V stages, including those that launched 12 astronauts to walk on the Moon.
“Talking to people working here during those years, you hear how much they believed in the mission,” said Joe Schuyler, director of the NASA Stennis Engineering and Test Directorate. “Their hard work helped America reach the Moon and showed us the possibilities for NASA Stennis.”
Construction workers bring down a tree during the early days of construction for NASA’s Stennis Space Center. Tree-cutting to start what was the largest construction project in Mississippi – and one of the largest in the United States – at the time began May 17, 1963.NASA/Stennis NASA Stennis (then known as the Mississippi Test Facility) conducts its first-ever test firing – a 15-second hot fire of the Saturn V S-II-C second stage prototype – on the A-2 Test Stand on April 23, 1966.NASA/Stennis An aerial image from early 1967 shows the completed A-2 Test Stand in the foreground and the Thad Cochran Test Stand (B-1/B-2) in the background at NASA’s Stennis Space Center, then known as the Mississippi Test Facility.NASA/Stennis NASA officials view the first space shuttle main engine test on the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center (then known as National Space Technology Laboratories) on May 19, 1975.NASA/Stennis A 1979 image offers a close-up view of a space shuttle main propulsion test article hot fire on the B-2 side of the Thad Cochran Test Stand at NASA’s Stennis Space Center (then known as National Space Technology Laboratories). Main propulsion test article testing involved installing a shuttle fuel tank, a mockup of the shuttle orbiter and the vehicle’s three-engine configuration on the stand, then firing all three engines simultaneously, as would be done during an actual launch.NASA/Stennis As Apollo missions neared an end, plans were underway to drastically reduce the NASA Stennis footprint. Enter the space shuttle. NASA considered three locations to test engines for its new reusable vehicle before selecting NASA Stennis on March 1, 1970, ensuring the center’s future for the next several decades.
Space shuttle main engine testing proved challenging as the site transitioned from handling full rocket stages to firing single engines. “A big part of the challenge was the fact that teams were testing an entire engine from the very start,” NASA Test Operations Chief Maury Vander said. “Typically, you begin testing components, then progress to a full engine. Teams had a lot to learn in real time.”
NASA Stennis teams also tested the shuttle Main Propulsion Test Article with three engines firing simultaneously. The testing was particularly critical given the first shuttle mission would carry astronauts.
NASA Stennis teams worked diligently to demonstrate the shuttle system would operate safely, an effort characterized as one of the site’s finest hours. Following the first shuttle mission in 1981, astronauts Robert Crippen and John Young visited the south Mississippi site. “The effort that you contributed made it possible for us to sit back and ride,” Crippen told NASA Stennis employees.
From 1975 to 2009, NASA Stennis tested every main engine to help power 135 shuttle missions that enabled historic missions, such as those that deployed and repaired the Hubble Space Telescope and assembled the International Space Station, enabling its many scientific experiments and spinoff technologies. The site also tested every engine and component upgrade and helped troubleshoot performance issues. It led test campaigns following shuttle accidents to help ensure safe returns to flight. In total, the site conducted 2,307 tests for 820,475.68 seconds of accumulated hot fire.
NASA conducts the final test of a space shuttle main engine on the A-2 Test Stand at NASA’s Stennis Space Center on July 29, 2009. The Space Shuttle Program concluded two years later with the STS-135 shuttle mission. NASA / Stennis An on-stand camera offers a closeup view of the first test of an RS-25 engine on the Fred Haise Test Stand (formerly the A-1 Test Stand) at NASA’s Stennis Space Center on Jan. 9, 2015. RS-25 engines power the core stage of NASA’s powerful SLS (Space Launch System) rocket.NASA/Stennis Crews at NASA’s Stennis Space Center install the first core stage of NASA’s powerful SLS (Space Launch System) on the B-2 side of the Thad Cochran Test Stand on Jan. 21-22, 2020. Following testing, the stage would help launch the Artemis I mission in November 2022.NASA/Stennis NASA conducts a full-duration RS-25 hot fire April 3, 2024, on the Fred Haise Test Stand at NASA’s Stennis Space Center, achieving a major milestone for future Artemis flights of NASA’s SLS (Space Launch System) rocket. It marked the final hot fire of a 12-test series to certify production of new RS-25 engines by lead contractor L3Harris (formerly known as Aerojet Rocketdyne) to help power NASA’s SLS rocket on Artemis missions to the Moon and beyond, beginning with Artemis V.NASA/Stennis Even as NASA Stennis tested main engines to power shuttle missions, the site led in testing next-generation engines, including the Fastrac, XRS-2200 linear aerospike, and J-2X. It also developed its E Test Complex, with multiple test stands and cells, to support a range of component and engine test projects, including those of commercial aerospace companies.
A landmark agreement between NASA Stennis and Aerojet Rocketdyne (now known as L3Harris) in 1998 marked the site’s first test partnership with such a company. “That was the starting point,” said Vander. “Today, we are a preferred partner for multiple companies and test projects, large and small.”
NASA Stennis also is testing RS-25 engines and related systems to help power NASA’s SLS (Space Launch System) rocket on Artemis missions to the Moon. When the agency travels to Mars, it is expected the missions will launch with engines tested at the Mississippi site as well.
“The Gulf Coast of Mississippi helped achieve our space dreams of the past, and NASA Stennis continues supporting today’s dreams,” Bailey said. “It is a true testament to the expertise and dedication of our entire team and the incredible support of surrounding communities and the whole state.”
For information about NASA’s Stennis Space Center, visit:
Stennis Space Center – NASA
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Last Updated Nov 13, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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