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By NASA
Johnson Space Center Vibration Test FacilityNASA Nov. 14, 2024
NASA Johnson Invites Proposals to Lease Vibration Test Facility
NASA’s Johnson Space Center is seeking proposals for the use of its historic, but underused, Vibration and Acoustic Test Facility. Prospective tenants must submit facility walk-through requests by Monday, Nov. 18.
Final proposals are due by 12 p.m. EST Monday, Dec. 16, and must promote activities that will build, expand, modernize, or operate aerospace-related capabilities at NASA Johnson and help preserve the historic and iconic building through preservation and adaptive reuse.
NASA plans to sign a National Historic Preservation Act (NHPA) lease agreement for the facility, also known as Building 49, for a five-year base period and one five-year extension to be negotiated between NASA and the tenant. To request a walk-through, send an email to hq-realestate@mail.nasa.gov.
“This historic facility has been used for decades to ensure the success and safety of all human spaceflight missions by putting engineering designs and hardware to the ultimate stress tests,” said NASA Johnson Director Vanessa Wyche. “For more than 60 years, NASA Johnson has been the hub of human space exploration and this agreement will be a vital part of the center’s efforts to develop a robust and durable space economy that refines our understanding of the solar system and space exploration.”
All proposals must adhere to the guidelines detailed in the Agency Announcement for Proposals describing concept plans for development of the property, including any modifications proposed to the building; a statement of financial capability to successfully achieve and sustain operations, demonstrated experience with aerospace-related services or other space-related activities, and a detailed approach to propelling the space economy.
The nine-story building complex has a gross square footage of 62,737 square feet and consists of a north wing measuring 62 feet long, 268 feet wide and 106 feet tall, and a central wing about 64 feet long and 115 feet wide. Building 49 currently houses five laboratories, including the General Vibration Laboratory, Modal Operations Laboratory, Sonic Fatigue Laboratory, Spacecraft Acoustic Laboratory, and Spacecraft Vibration Laboratory. The south administrative portion of the building is not included in the property offered for lease.
As the home of Mission Control Center for the agency’s human space missions, astronaut training, robotics, human health and space medicine, NASA Johnson leads the way for the human exploration. Leveraging its unique role and location, the center is developing multiple lease agreements, including the recently announced Exploration Park, to sustain its key role in helping the human spaceflight community foster a robust space.
In the coming years, NASA and its academic, commercial, and international partners will see the completion of the International Space Station Program, the commercial development of low Earth orbit, and the first human Artemis campaign missions establishing sustainable human presence on the Moon in preparation for human missions to Mars.
Johnson already is leading the commercialization of space with the commercial cargo and crew programs and private astronaut missions to the space station. The center also is supporting the development of commercial space stations in low Earth orbit, and lunar-capable commercial spacesuits and lunar landers that will be provided as services to both NASA and the private sector to accelerate human access to space. Through the development of Exploration Park, the center will broaden the scope of the human spaceflight community that is tackling the many difficult challenges ahead.
Learn more about NASA Johnson’s efforts to collaborate with industry partners:
https://www.nasa.gov/johnson/frontdoor
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Kelly Humphries
Johnson Space Center, Houston
281-483-5111
kelly.o.humphries@nasa.gov
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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/.
Contrary to the popular saying, work conducted by the propulsion test team at NASA’s Stennis Space Center is rocket science – and requires all the talent, knowledge, and expertise the term implies.
Rocket science at NASA Stennis, located near Bay St. Louis, Mississippi, has helped safely power American space dreams for almost 60 years ago. The accumulated knowledge and skills of the site’s test team continue to benefit NASA and commercial aerospace companies, thanks to new generations of skilled engineers and operators.
“The innovative, can-do attitude started with the founding of the south Mississippi site more than six decades ago,” said NASA Stennis Director John Bailey. “The knowledge, skills, and insight of a versatile team continue supporting NASA’s mission and goals of commercial aerospace companies by routinely conducting successful propulsion testing at NASA Stennis.”
Test team personnel perform facility data review following completion of a liquid oxygen cold-flow activation activity on the E-1 Test Stand at NASA’s Stennis Space Center on March 23, 2016. Activation of the test cell was in preparation for testing L3Harris’ (then known as Aerojet Rocketdyne) AR1 rocket engine pre-burner and main injector. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities for NASA and commercial projects. NASA/Stennis Operators at NASA’s High Pressure Gas Facility conduct a critical stress test Oct. 18-19, 2018, to demonstrate the facility’s readiness to support testing of the core stage of NASA’s powerful SLS (Space Launch System) rocket. The High Pressure Gas Facility was critical in producing and delivering gases needed for SLS core stage testing ahead of the successful launch of Artemis I. NASA/Stennis Test control center crews at NASA’s Stennis Space Center’s simulate full operations of core stage testing Dec. 13, 2019, for NASA’s powerful SLS (Space Launch System) rocket on the Thad Cochran Test Stand (B-2). NASA Stennis conducted SLS core stage testing in 2020-21 ahead of the successful Artemis I mission. NASA/Stennis A sitewide stress test at NASA’s Stennis Space Center on Dec. 13, 2019, simulates full operations needed during SLS (Space Launch System) core stage testing. The 24-hour exercise involved crews across NASA Stennis, including at the High Pressure Water Facility that provided needed generator power and water flow to the Thad Cochran Test Stand (B-2) during testing.NASA/Stennis The NASA Stennis team exhibits a depth and breadth of experience and expertise likely unsurpassed anywhere in the world.
The depth is built on decades of propulsion test experience. Veteran team members of today learned from those working during the Apollo era, who overcame various engineering, technical, communications, and mechanical difficulties in testing the Saturn V rocket stages that powered humans to the Moon. During 43 stage firings, the team accumulated an estimated 2,475 years of rocket engine test expertise.
Members of the Apollo test team then joined with new engineers and operators to test main engines that powered 30 years of space shuttle missions. From 1975 to 2009, the team supported main engine development, certification, acceptance, and anomaly testing with over 2,300 hot fires and more than 820,000 seconds of accumulated hot-fire time.
“NASA Stennis is unique because of the proven test operations expertise passed from generation to generation,” said Joe Schuyler, director of the NASA Stennis Engineering and Test Directorate. “It is expertise you can trust to deliver what is needed.”
A member of the Fred Haise Test Stand (formerly the A-1 Test Stand) operations team examines the progress of a cold-shock test on May 1, 2014. The test marked a milestone in preparing the stand to test RS-25 rocket engines that will help power NASA’s SLS (Space Launch System) rocket.NASA/Stennis In addition to depth, the site team also has a breadth of experience that gives it unparalleled versatility and adaptability.
Part of that comes from the nature of the center itself. NASA Stennis is the second largest NASA center in terms of geography, but the civil servant workforce is small. As a result, test team members work on a range of propulsion projects, from testing components on smaller E Test Complex cells to firing large engines and even rocket stages on the heritage Apollo-era stands.
“Our management have put us in a position to be successful,” said NASA engineer Josh Greiner. “They have helped move us onto the test stands and given us a huge share of the responsibility of leading projects early in our career, which provides us the confidence and opportunity to conduct tests.”
In addition, center leaders made a deliberate decision more than a decade ago to return test stand operations to the NASA team. Prior to that time, stand operations were in the hands of contractors under NASA supervision. The shift allowed the civil servant test team to fine-tune its skill set even as it continued to work closely with contractor partners to support both government and commercial aerospace propulsion projects.
An image from October 2022 shows NASA engineers preparing for the next RS-25 engine test series at NASA’s Stennis Space Center by monitoring the reload of propellant tanks to the Fred Haise Test Stand (formerly the A-1 Test Stand). RS-25 engines are powered by a mix of liquid hydrogen and liquid oxygen.NASA/Stennis An image from October 2022 shows test team personnel ensuring pressures and flow paths are set properly for liquid oxygen to be transferred to the Fred Haise Test Stand (formerly the A-1 Test Stand), pictured in the background.NASA/Stennis An image from August 2023 shows test team personnel inspecting a pump during an initial chill down activity at the E-3 Test Complex. The versatile four-stand E Test Complex includes 12 active test cell positions capable of various component, engine, and stage test activities for NASA and commercial programs and projects. NASA/Stennis An image from September 2023 shows test team personnel preparing for future SLS (Space Launch System) exploration upper stage testing that will take place on the B-2 side of the Thad Cochran Test Stand. NASA’s new upper stage is being built as a more powerful SLS second stage to send the Orion spacecraft and heavier payloads to deep space. It will fly on the Artemis missions following a series of Green Run tests of its integrated systems at NASA Stennis. The test series will culminate with a hot fire of the four RL10 engines that will power the upper stage.NASA/Stennis An image from September 2023 shows test team personnel preparing for future SLS (Space Launch System) exploration upper stage testing by conducting a liquid hydrogen flow procedure. NASA’s new upper stage is being built as a more powerful SLS second stage to send the Orion spacecraft and heavier payloads to deep space. The upper stage will undergo a series of Green Run tests of its integrated systems on the B-2 side of the Thad Cochran Test Stand at NASA Stennis.NASA/Stennis The evolution and performance of the NASA Stennis team was illustrated in stark fashion in June/July 2018 when a blended team of NASA, Defense Advanced Research Projects Agency, Aerojet Rocketdyne, Boeing, and Syncom Space Services engineers and operators test fired an AR-22 rocket engine 10 times in a 240-hour period.
The campaign marked the first time a large liquid oxygen/liquid hydrogen engine had been tested so often in such a short period of time. The test team overcame a variety of challenges, including a pair of lightning strikes that threatened to derail the entire effort. Following completion of the historic series, a NASA engineer who helped lead the campaign recounted one industry observer who repeatedly characterized the site’s test team as nothing less than a national asset.
The experienced site workforce now tests RS-25 engines and propulsion systems for NASA’s Artemis campaign, including those that will help power Artemis missions to the Moon for scientific discovery and economic benefits. The NASA Stennis team also supports a range of commercial aerospace propulsion test activities, facilitating continued growth in capabilities. For instance, the team now has experience working with oxygen, hydrogen, methane, and kerosene propellants.
“The NASA and contractor workforce at NASA Stennis is second to none when it comes to propulsion testing,” Schuyler said. “Many of the current employees have been involved in rocket engine testing for over 30 years, and newer workers are being trained under these seasoned professionals.”
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
(Oct. 25, 2024) — NASA astronaut and Expedition 72 Commander Suni Williams is pictured at the galley inside the International Space Station’s Unity module at the beginning of her day.Credit: NASA Students from Colorado will have the opportunity to hear NASA astronauts Nick Hague and Suni Williams answer their prerecorded questions aboard the International Space Station on Thursday, Nov. 14.
Watch the 20-minute space-to-Earth call at 1 p.m. EST on NASA+. Learn how to watch NASA content on various platforms, including social media.
The JEKL Institute for Global Equity and Access, in partnership with the Denver Museum of Nature and Science, will host students from the Denver School of Science and Technology for the event. Students are building CubeSat emulators to launch on high-altitude balloons, and their work will drive their questions with crew.
Media interested in covering the event must RSVP by 5 p.m., Wednesday, Nov. 13, to Daniela Di Napoli at: daniela.dinapoli@scienceandtech.org or 832-656-5231.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos and lesson plans highlighting space station research at:
https://www.nasa.gov/stemonstation
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Tiernan Doyle
Headquarters, Washington
202-358-1600
tiernan.doyle@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Nov 12, 2024 EditorTiernan P. DoyleLocationNASA Headquarters Related Terms
International Space Station (ISS) Astronauts Communicating and Navigating with Missions Humans in Space ISS Research Johnson Space Center Near Space Network Space Communications & Navigation Program Sunita L. Williams View the full article
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