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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
By Wayne Smith
As NASA plans for humans to return to the Moon and eventually explore Mars, a laser beam welding collaboration between NASA’s Marshall Space Flight Center in Huntsville, Alabama, and The Ohio State University in Columbus aims to stimulate in-space manufacturing.
Scientists and engineers from NASA’s Marshall Space Flight Center, participating in the laser beam welding study in August, stand in front of the parabolic plane used for testing. From left, Will Evans, Louise Littles, Emma Jaynes, Andrew O’Connor, and Jeffrey Sowards. Not pictured: Zachary Courtright.Casey Coughlin/Starlab-George Washington Carver Science Park The multi-year effort seeks to understand the physical processes of welding on the lunar surface, such as investigating the effects of laser beam welding in a combined vacuum and reduced gravity environment. The goal is to increase the capabilities of manufacturing in space to potentially assemble large structures or make repairs on the Moon, which will inform humanity’s next giant leap of sending astronauts to Mars and beyond.
“For a long time, we’ve used fasteners, rivets, or other mechanical means to keep structures that we assemble together in space,” said Andrew O’Connor, a Marshall materials scientist who is helping coordinate the collaborative effort and is NASA’s technical lead for the project. “But we’re starting to realize that if we really want strong joints and if we want structures to stay together when assembled on the lunar surface, we may need in-space welding.” The ability to weld structures in space would also eliminate the need to transport rivets and other materials, reducing payloads for space travel. That means learning how welds will perform in space.
To turn the effort into reality, researchers are gathering data on welding under simulated space conditions, such as temperature and heat transfer in a vacuum; the size and shape of the molten area under a laser beam; how the weld cross-section looks after it solidifies; and how mechanical properties change for welds performed in environmental conditions mimicking the lunar surface.
“Once you leave Earth, it becomes more difficult to test how the weld performs, so we are leveraging both experiments and computer modeling to predict welding in space while we’re still on the ground,” said O’Connor.
In August 2024, a joint team from Ohio State’s Welding Engineering and Multidisciplinary Capstone Programs and Marshall’s Materials & Processes Laboratory performed high-powered fiber laser beam welding aboard a commercial aircraft that simulated reduced gravity. The aircraft performed parabolic flight maneuvers that began in level flight, pulled up to add 8,000 feet in altitude, and pushed over at the top of a parabolic arc, resulting in approximately 20 seconds of reduced gravity to the passengers and experiments.
While floating in this weightless environment, team members performed laser welding experiments in a simulated environment similar to that of both low Earth orbit and lunar gravity. Analysis of data collected by a network of sensors during the tests will help researchers understand the effects of space environments on the welding process and welded material.
NASA Marshall engineers and scientists, along with their collaborators from Ohio State University, monitor laser beam welding in a vacuum chamber during a Boeing 727 parabolic flight. From left, Andrew O’Connor, Marshall materials scientist and NASA technical lead for the project; Louise Littles, Marshall materials scientist; and Aaron Brimmer, OSU graduate student.Tasha Dixon/Zero-G “During the flights we successfully completed 69 out of 70 welds in microgravity and lunar gravity conditions, realizing a fully successful flight campaign,” said Will McAuley, an Ohio State welding engineering student.
Funded in part by Marshall and spanning more than two years, the work involves undergraduate and graduate students and professors from Ohio State, and engineers across several NASA centers. Marshall personnel trained alongside the university team, learning how to operate the flight hardware and sharing valuable lessons from previous parabolic flight experiments. NASA’s Langley Research Center in Hampton, Virginia, developed a portable vacuum chamber to support testing efforts.
The last time NASA performed welding in space was during the Skylab mission in 1973. Other parabolic tests have since been performed, using low-powered lasers. Practical welding and joining methods and allied processes, including additive manufacturing, will be required to develop the in-space economy. These processes will repurpose and repair critical space infrastructure and could build structures too large to fit current launch payload volumes. In-space welding could expedite building large habitats in low Earth orbit, spacecraft structures that keep astronauts safe on future missions, and more.
The work is also relevant to understanding how laser beam welding occurs on Earth. Industries could use data to inform welding processes, which are critical to a host of manufactured goods from cars and refrigerators to skyscrapers.
“We’re really excited about laser beam welding because it gives us the flexibility to operate in different environments,” O’Connor said.
There has been a resurgence of interest in welding as we look for innovative ways to put larger structures on the surface of the Moon and other planets.
Andrew O’Connor
Marshall Space Flight Center materials scientist
This effort is sponsored by NASA Marshall’s Research and Development funds, the agency’s Science Mission Directorate Biological and Physical Sciences Division of the agency’s Science Mission Directorate, and NASA’s Space Technology Mission Directorate, including NASA Flight Opportunities.
For more information about NASA’s Marshall Space Flight Center, visit:
https://www.nasa.gov/marshall
Joel Wallace
Marshall Space Flight Center, Huntsville, Alabama
256.544.0034
joel.w.wallace@nasa.gov
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Last Updated Nov 07, 2024 Related Terms
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By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
This September 2024 aerial photograph shows the coastal launch range at NASA’s Wallops Flight Facility on Virginia’s Eastern Shore. Wallops is the agency’s only owned-and-operated launch range.Courtesy Patrick J. Hendrickson; used with permission A rocket-propelled target is scheduled to launch from NASA’s Wallops Flight Facility in Virginia during a window Thursday, Nov. 7 to Friday, Nov. 8 between 9:30 a.m. and 2:30 p.m. EST both days as part of a U.S. Navy Fleet Training exercise.
No real-time launch status updates will be available. The launch will not be livestreamed nor will launch status updates be provided during the countdown. The rocket launch may be visible from the Chesapeake Bay region.
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Last Updated Nov 05, 2024 LocationWallops Flight Facility Related Terms
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1 min read NASA Wallops to Support Sounding Rocket Launch for U.S. Navy Fleet Training
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By NASA
The SpaceX Dragon spacecraft, carrying more than 6,000 pounds of supplies to the orbiting laboratory, lifted off at 9:29 p.m. EST Monday, on the company’s Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.Credits: NASA Following a successful launch of NASA’s SpaceX 31st commercial resupply mission, new scientific experiments and cargo for the agency are bound for the International Space Station.
The SpaceX Dragon spacecraft, carrying more than 6,000 pounds of supplies to the orbiting laboratory, lifted off at 9:29 p.m. EST Monday, on the company’s Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Live coverage of the spacecraft’s arrival will begin at 8:45 a.m. Tuesday, Nov. 5, on NASA+ and the agency’s website. Learn how to watch NASA content through a variety of platforms, including social media.
The spacecraft is scheduled to autonomously dock at approximately 10:15 a.m. to the forward port of the space station’s Harmony module.
The resupply mission will support dozens of research experiments conducted during Expedition 72. In addition to food, supplies, and equipment for the crew, Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity and an investigation that studies how space impacts different materials.
These are just a sample of the hundreds of investigations conducted aboard the orbiting laboratory in the areas of biology and biotechnology, physical sciences, and Earth and space science. Such research benefits humanity and lays the groundwork for future human exploration through the agency’s Artemis campaign, which will send astronauts to the Moon to prepare for future expeditions to Mars.
The Dragon spacecraft is scheduled to remain at the space station until December when it will depart the orbiting laboratory and return to Earth with research and cargo, splashing down off the coast of Florida.
Learn more about space station activities by following @space_station and @ISS_Research on X, as well as the ISS Facebook, ISS Instagram, and the space station blog.
Learn more about the commercial resupply mission at:
https://www.nasa.gov/mission/nasas-spacex-crs-31
-end-
Claire O’Shea / Josh Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / claire.a.o’shea@nasa.gov
Stephanie Plucinsky / Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
stephanie.n.plucinsky@nasa.gov / steven.p.siceloff@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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By NASA
The SpaceX Dragon spacecraft, carried on the company’s Falcon 9 rocket, will launch from Launch Complex 39A at NASA’s Kennedy Space Center in Florida for the agency’s SpaceX 31st commercial resupply services mission to the International Space Station.Credit: SpaceX NASA and SpaceX are targeting 9:29 p.m. EST, Monday, Nov. 4, for the next launch to deliver science investigations, supplies, and equipment to the International Space Station. This is the 31st SpaceX commercial resupply services mission to the orbital laboratory for the agency.
Filled with nearly 6,000 pounds of supplies, a SpaceX Dragon spacecraft on a Falcon 9 rocket will lift off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Live launch coverage will begin at 9:10 p.m. on NASA+ and the agency’s website. Learn how to watch NASA content through a variety of platforms, including social media.
NASA’s coverage of arrival will begin at 8:45 a.m. Tuesday, Nov. 5, on NASA+ and the agency’s website. Dragon will dock autonomously to the forward port of the space station’s Harmony module.
In addition to food, supplies, and equipment for the crew, Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity, and an investigation that studies how space impacts different materials.
Media interested in speaking to a science subject matter expert should contact Leah Cheshier at: leah.d.cheshier@nasa.gov.
The Dragon spacecraft is scheduled to remain at the space station until December when it will depart the orbiting laboratory and return to Earth with research and cargo, splashing down off the coast of Florida.
NASA’s mission coverage is as follows (all times Eastern and subject to change based on real-time operations):
Monday, Nov. 4:
3:30 p.m. – Prelaunch media teleconference (no earlier than one hour after completion of the Launch Readiness Review) with the following participants:
Bill Spetch, operations and integration manager, NASA’s International Space Station Program Meghan Everett, deputy chief scientist, NASA’s International Space Station Program Jared Metter, director, flight reliability, SpaceX
Media who wish to participate by phone must request dial-in information by 5 p.m. Friday, Nov. 1, by emailing Kennedy’s newsroom at: ksc-media-accreditat@mail.nasa.gov.
Audio of the teleconference will stream live on the agency’s website.
9:10 p.m. – Launch coverage begins on NASA+ and the agency’s website.
9:29 p.m. – Launch
Tuesday, Nov. 5:
8:45 a.m. – Arrival coverage begins on NASA+ and the agency’s website.
10:15 a.m. – Docking
NASA website launch coverage
Launch day coverage of the mission will be available on the NASA website. Coverage will include live streaming and blog updates beginning no earlier than 9:10 p.m., Nov. 4, as the countdown milestones occur. On-demand streaming video on NASA+ and photos of the launch will be available shortly after liftoff. For questions about countdown coverage, contact the NASA Kennedy newsroom at 321-867-2468. Follow countdown coverage on our International Space Station blog for updates.
Attend Launch Virtually
Members of the public can register to attend this launch virtually. NASA’s virtual guest program for this mission also includes curated launch resources, notifications about related opportunities or changes, and a stamp for the NASA virtual guest passport following launch.
Watch, Engage on Social Media
Let people know you’re watching the mission on X, Facebook, and Instagram by following and tagging these accounts:
X: @NASA, @NASAKennedy, @NASASocial, @Space_Station, ISS_Research, @ISS National Lab
Facebook: NASA, NASAKennedy, ISS, ISS National Lab
Instagram: @NASA, @NASAKennedy, @ISS, @ISSNationalLab
Coverage en Espanol
Did you know NASA has a Spanish section called NASA en Espanol? Check out NASA en Espanol on X, Instagram, Facebook, and YouTube for additional mission coverage.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitar entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Learn more about the commercial resupply mission at:
https://www.nasa.gov/mission/nasas-spacex-crs-31
-end-
Claire O’Shea / Josh Finch
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov / joshua.a.finch@nasa.gov
Stephanie Plucinsky / Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
stephanie.n.plucinsky@nasa.gov / steven.p.siceloff@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Oct 30, 2024 EditorJessica TaveauLocationNASA Headquarters Related Terms
SpaceX Commercial Resupply International Space Station (ISS) ISS Research Kennedy Space Center View the full article
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