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ESA astronaut Samantha Cristoforetti returns from her second mission to the International Space Station


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    • By NASA
      5 Min Read NASA Returns to Arctic Studying Summer Sea Ice Melt
      NASA's Gulfstream III aircraft taxis on the runway at Pituffik Space Base as it begins one of its daily science flights for the ARCSIX mission. Credits: NASA/Gary Banziger What happens in the Arctic doesn’t stay in the Arctic, and a new NASA mission is helping improve data modeling and increasing our understanding of Earth’s rapidly changing climate. Changing ice, ocean, and atmospheric conditions in the northernmost part of Earth have a large impact on the entire planet. That’s because the Arctic region acts like Earth’s air conditioner.  
      Much of the Sun’s energy is transported from tropical regions of our planet by winds and weather systems into the Arctic where it is then lost to space. This process helps cool the planet.  
      The NASA-sponsored Arctic Radiation Cloud Aerosol Surface Interaction Experiment (ARCSIX) mission is flying three aircraft over the Arctic Ocean north of Greenland to study these processes. The aircraft are equipped with instruments to gather observations of surface sea ice, clouds, and aerosol particles, which affect the Arctic energy budget and cloud properties. The energy budget is the balance between the energy that Earth receives from the Sun and the energy the Earth loses to outer space. 
      To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
      This highlight video gives viewers a front row seat to a typical day on the ARCSIX mission from Pituffik Space Base as NASA's research scientists, instrument operators, and flight crews fly daily routes observing sea ice and clouds 750 miles north of the Arctic Circle in Greenland.NASA/Gary Banziger “More sea ice makes that air conditioning effect more efficient. Less sea ice lessens the Arctic’s cooling effect,” says Patrick Taylor, a climate scientist at NASA’s Langley Research Center in Hampton, Virginia. “Over the last 40 years, The Arctic has lost a significant amount of sea ice making the Arctic warm faster. As the Arctic warms and sea ice melts, it can cause ripple effects that impact weather conditions thousands of miles away, how fast our seas are rising, and how much flooding we get in our neighborhoods.” 
      As the Arctic warms and sea ice melts, it can cause ripple effects…thousands of miles away.
      Patrick Taylor
      NASA Climate Research Scientist
      The first series of flights took place in May and June as the seasonal melting of ice started. Flights began again on July 24 during the summer season, when sea ice melting is at its most intense. 
      “We can’t do this kind of Arctic science without having two campaigns,” said Taylor, the deputy science lead for ARCSIX. “The sea ice surface in the spring was very bright white and snow covered. We saw some breaks in the ice. What we will see in the second campaign is less sea ice and sea ice that is bare, with no snow. It will be covered with all kinds of melt ponds – pooling water on top of the ice – that changes the way the ice interacts with sunlight and potentially changes how the ice interacts with the atmosphere and clouds above.” 
      Sea ice and the snow on top of the ice insulate the ocean from the atmosphere, reflecting the Sun’s radiation back towards space, and helping to cool the planet. Less sea ice and darker surfaces result in more of the Sun’s radiation being absorbed at the surface or trapped between the surface and the clouds.  
      To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
      A pilot's view of Arctic sea ice from NASA's P-3 Orion aircraft during NASA's ARCSIX airborne science mission flights in June.NASA/Gary Banziger Understanding this relationship, and the role clouds play in the system, will help scientists improve satellite data and better predict future changes in the Arctic climate.  
      “This unique team of pilots, engineers, scientists, and aircraft can only be done by leveraging expertise from multiple NASA centers and our partners,” said Linette Boisvert, cryosphere lead for the mission from NASA’s Space Flight Center in Greenbelt, Maryland. “We gathered great data of the snow and ice pre-melt and at the onset of melt. I can’t wait to see the changes at the height of melt as we measure the same areas covered with melt ponds.” 
      NASA partnered with the University of Colorado Boulder for the ARCSIX mission, and the research team found some surprises in their early data analysis from the spring campaign. One potential discovery is something Taylor is calling a “sea ice sandwich”, when a younger layer of sea ice is caught in between two layers of older sea ice. Scientists also found more drizzle within the clouds than expected. Both observations will need further investigating once the data is fully processed. 
      A research scientist monitors data measurements in-flight during the spring campaign of the ARCSIX mission.NASA/Gary Banziger “A volcano erupted in Iceland, and we believe the volcanic aerosol plume was indicated by our models four days later,” Taylor said. “Common scientific knowledge tells us volcanic particles, like ash and sulfate, would have already been removed from the atmosphere. More work needs to be done, but our initial results suggest these particles might live in the atmosphere much longer than previously thought.” 
      Previous studies suggest that aerosol particles in clouds can influence sea ice melt. Data collected during ARCSIX’s spring flights showed the Arctic atmosphere had several aerosol particle layers, including wildfire smoke, pollution, and dust transported from Asia and North America. 
      “We got everything we hoped for and more in the first campaign,” Taylor added. “The data from this summer will help us better understand how clouds and sea ice behave. We’ll be able to use these results to improve predictive models. In the coming years, scientists will be able to better predict how to mitigate and adapt to the rapid changes in climate we’re seeing in the Arctic.” 
       
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      Details
      Last Updated Jul 26, 2024 EditorCharles G. HatfieldContactCharles G. Hatfieldcharles.g.hatfield@nasa.govLocationLangley Research Center Related Terms
      Earth Airborne Science Goddard Space Flight Center Ice & Glaciers Langley Research Center Sea Ice Wallops Flight Facility Explore More
      4 min read NASA Mission Flies Over Arctic to Study Sea Ice Melt Causes
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    • By NASA
      Olympics on the International Space Station
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      NASA/Steven Seipel On Sept. 2, 2022, NASA astronauts Anil Menon (left), Deniz Burnham (center), and Marcos Berrios (right) posed for a photograph in front of NASA’s Artemis I SLS (Space Launch System) and Orion spacecraft at the agency’s Kennedy Space Center in Florida.
      Burnham began her career as an intern at NASA’s Ames Research Center. She earned a bachelor’s degree in chemical engineering from the University of California, San Diego, and a master’s degree in mechanical engineering from the University of Southern California in Los Angeles.
      Burnham reported for duty in January 2022 to complete two years of initial astronaut training as a NASA astronaut candidate. Burnham, Menon, and Berrios astronaut candidates graduated in a ceremony on March 5, 2024. The graduates may be assigned to missions destined for the International Space Station, future commercial space stations, and Artemis campaign missions to the Moon in preparation for Mars.
      Applications to become a NASA intern are currently open. Apply for Spring 2025 internships by Aug. 23, 2024.
      Image credit: NASA/Steven Seipel
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    • By Space Force
      Col. Nick Hague and his crewmates from the NASA SpaceX Crew-9 mission met with Airmen and Guardians to speak with and give thanks to representatives of military units who make manned spaceflight missions possible.

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    • By NASA
      Sierra Space’s LIFE habitat following a full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center in Huntsville, AlabamaSierra Space An element of a NASA-funded commercial space station, Orbital Reef, under development by Blue Origin and Sierra Space, recently completed a full-scale ultimate burst pressure test as part of the agency’s efforts for new destinations in low Earth orbit.
      NASA, Sierra Space, and ILC Dover teams conducting a full-scale ultimate burst pressure test on Sierra Space’s LIFE habitat structure using testing capabilities at NASA’s Marshall Space Flight Center in Huntsville, Alabama. Video Credits: Sierra Space This milestone is part of a NASA Space Act Agreement awarded to Blue Origin in 2021. Orbital Reef includes elements provided by Sierra Space, including the LIFE (Large Integrated Flexible Environment) habitat structure.
      A close-up view of Sierra Space’s LIFE habitat, which is fabricated from high-strength webbings and fabric, after the pressurization to failure experienced during a burst test.Sierra Space Teams conducted the burst test on Sierra Space’s LIFE habitat structure using testing capabilities at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The inflatable habitat is fabricated from high-strength webbings and fabric that form a solid structure once pressurized. The multiple layers of soft goods materials that make up the shell are compactly stowed in a payload fairing and inflated when ready for use, enabling the habitat to launch on a single rocket.
      A close-up view of a detached blanking plate from the Sierra Space’s LIFE habitat structure following its full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The plate is used to test the concept of a habitat window.Sierra Space “This is an exciting test by Sierra Space for Orbital Reef, showing industry’s commitment and capability to develop innovative technologies and solutions for future commercial destinations,” said Angela Hart, manager of NASA’s Commercial Low Earth Orbit Development Program at the agency’s Johnson Space Center in Houston. “Every successful development milestone by our partners is one more step to achieving our goal of enabling commercial low Earth orbit destinations and expanding the low Earth orbit marketplace.”
      Dr. Tom Marshburn, Sierra Space chief medical officer, speaks with members of the Sierra Space team following the burst test.Sierra Space The pressurization to failure during the test demonstrated the habitat’s capabilities and provided the companies with critical data supporting NASA’s inflatable softgoods certification guidelines, which recommend a progression of tests to evaluate these materials in relevant operational environments and understand the failure modes.
      Sierra Space’s LIFE habitat following a full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center in Huntsville, Alabama.Sierra Space Demonstrating the habitat’s ability to meet the recommended factor of safety through full-scale ultimate burst pressure testing is one of the primary structural requirements on a soft goods article, such as Sierra Space’s LIFE habitat, seeking flight certification.

      Prior to this recent test, Sierra Space conducted its first full-scale ultimate burst pressure test on the LIFE habitat at Marshall in December 2023. Additionally, Sierra Space previously completed subscale tests, first at NASA’s Johnson Space Center in Houston and then at Marshall as part of ongoing development and testing of inflatable habitation architecture.
      Sierra Space’s LIFE habitat on the test stand at NASA’s Marshall Space Flight Center ahead of a burst test. The LIFE habitat will be part of Blue Origin’s commercial destination, Orbital Reef.Sierra Space NASA supports the design and development of multiple commercial space stations, including Orbital Reef, through funded and unfunded agreements. The current design and development phase will be followed by the procurement of services from one or more companies.

      NASA’s goal is to achieve a strong economy in low Earth orbit where the agency can purchase services as one of many customers to meet its science and research objectives in microgravity. NASA’s commercial strategy for low Earth orbit will provide the government with reliable and safe services at a lower cost, enabling the agency to focus on Artemis missions to the Moon in preparation for Mars while also continuing to use low Earth orbit as a training and proving ground for those deep space missions.

      Learn more about NASA’s commercial space strategy at:
      https://www.nasa.gov/humans-in-space/commercial-space
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