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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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      Details
      Last Updated Nov 13, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
      Stennis Space Center Explore More
      5 min read NASA Stennis – An Ideal Place for Commercial Companies
      Article 13 mins ago 4 min read NASA Stennis Propulsion Testing Contributes to Artemis Missions
      Article 14 mins ago 5 min read NASA Stennis Adapts with Purpose to Power Nation’s Space Dreams
      Article 14 mins ago Keep Exploring Discover Related Stennis Topics
      Propulsion Test Engineering
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    • By SpaceX
      Starship | Fifth Flight Test
    • 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
      Share
      Details
      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
    • By NASA
      Test caption textView the full article
    • By NASA
      Astronaut and Artemis II pilot, Victor Glover, maneuvers the latch handle on an Orion test side hatch during performance evaluations at the Lockheed Martin Space campus in Littleton, Colorado.Photo credit: Lockheed Martin Artemis II NASA astronauts Victor Glover, Christina Koch, and Reid Wiseman, and CSA (Canadian Space Agency) astronaut Jeremy Hansen recently traveled to Lockheed Martin Space in Littleton, Colorado, where they practiced opening and closing an Orion crew module side hatch model to help demonstrate its reliability and durability during their 10-day mission around the Moon.
      During normal mission operations, the crew will not operate the hatches – the ground systems team at NASA’s Kennedy Space Center in Florida will assist the crew into Orion at the launch pad, then close the hatch behind them prior to liftoff. After splashdown in the Pacific Ocean, recovery teams will open the side hatch and help crew to exit.
      Back-up crew members Andre Douglas of NASA and Jenni Gibbons of CSA also trained on hatch operations, which help ensure the crew can safely enter and exit the spacecraft in the event of an emergency. The side hatch is normally opened using a manual gearbox system, but in an emergency, the hatch has release mechanisms containing small pyrotechnic (explosive) devices that release the latch pins on the hatch instantaneously, allowing the hatch to open quickly.
      Under NASA’s Artemis campaign, the agency will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and its first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars for the benefit of all.  
      View the full article
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