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    • By NASA
      Crew members are kicking off operations for several biological experiments that recently launched to the International Space Station aboard NASA’s 32nd SpaceX commercial resupply services mission. These include examining how microgravity affects production of protein by microalgae, testing a microscope to capture microbial activity, and studying genetic activity in biofilms.
      Microalgae in microgravity
      Sophie’s BioNutrients This ice cream is one of several products made with a protein powder created from Chorella microalgae by researchers for the SOPHONSTER investigation, which looks at whether the stress of microgravity affects the algae’s protein yield. Microalgae are nutrient dense and produce proteins with essential amino acids, beneficial fatty acids, B vitamins, iron, and fiber. These organisms also can be used to make fuel, cooking oil, medications, and materials. Learning more about microalgae growth and protein production in space could support development of sustainable alternatives to meat and dairy. Such alternatives could provide a food source on future space voyages and for people on Earth and be used to make biofuels and bioactive compounds in medicines.
      Microscopic motion
      Portland State University These swimming microalgae are visible thanks to the Extant Life Volumetric Imaging System or ELVIS, a fluorescent 3D imaging microscope that researchers are testing aboard the International Space Station. The investigation studies both active behaviors and genetic changes of microscopic algae and marine bacteria in response to spaceflight. ELVIS is designed to autonomously capture microscopic motion in 3D, a capability not currently available on the station. The technology could be useful for a variety of research in space and on Earth, such as monitoring water quality and detecting potentially infectious organisms.
      Genetics of biofilms
      BioServe This preflight image shows sample chambers for the Genetic Exchange in Microgravity for Biofilm Bioremediation (GEM-B2) investigation, which examines the mechanisms of gene transfer within biofilms under microgravity conditions. Biofilms are communities of microorganisms that collect and bind to a surface. They can clog and foul water systems, often leave a residue that can cause infections, and may become resistant to antibiotics. Researchers could use results from this work to develop genetic manipulations that inhibit biofilm formation, helping to maintain crew health and safety aboard the International Space Station and on future missions.
      Learn more about microgravity research and technology development aboard the space station on this webpage.
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    • By NASA
      Jeremy Johnson, a research pilot and aviation safety officer, poses in front of a PC-12 aircraft inside the hangar at NASA’s Glenn Research Center in Cleveland on Thursday, April 17, 2025. Johnson flies NASA planes to support important scientific research and testing.Credit: NASA/Sara Lowthian-Hanna Jeremy Johnson laces his black, steel-toed boots and zips up his dark blue flight suit. Having just finished a pre-flight mission briefing with his team, the only thing on his mind is heading to the aircraft hangar and getting a plane in the air.
      As he eases a small white-and-blue propeller aircraft down the hangar’s ramp and onto the runway, he hears five essential words crackle through his headset: “NASA 606, cleared for takeoff.”
      This is a typical morning for Johnson, a research pilot and aviation safety officer at NASA’s Glenn Research Center in Cleveland. Johnson flies NASA planes to support important scientific research and testing, working with researchers to plan and carry out flights that will get them the data they need while ensuring safety.
      Johnson hasn’t always flown in NASA planes. He comes to the agency from the U.S. Air Force, where he flew missions all over the world in C-17 cargo aircraft, piloted unmanned reconnaissance operations out of California, and trained young aviators in Oklahoma on the fundamentals of flying combat missions.

      Jeremy Johnson stands beside a C-17 aircraft before a night training flight in Altus, Oklahoma, in 2020. Before supporting vital flight research at NASA through a SkillBridge fellowship, which gives transitioning service members the opportunity to gain civilian work experience, Johnson served in the U.S. Air Force and flew C-17 airlift missions all over the world.Credit: Courtesy of Jeremy Johnson He’s at Glenn for a four-month Department of Defense SkillBridge fellowship. The program gives transitioning service members an opportunity to gain civilian work experience through training, apprenticeships, or internships during their last 180 days of service before separating from the military.
      “I think SkillBridge has been an amazing tool to help me transition into what it’s like working somewhere that isn’t the military,” Johnson said. “In the Air Force, flying the mission was the mission. At NASA Glenn, the science—the research—is the mission.”
      By flying aircraft outfitted with research hardware or carrying test equipment, Johnson has contributed to two vital projects at NASA so far. One is focused on testing how well laser systems can transmit signals for communication and navigation. The other, part of NASA’s research under Air Mobility Pathfinders, explores how 5G telecommunications infrastructure can help electric air taxis of the future be safely incorporated into the national airspace. This work, and the data that scientists can collect through flights, supports NASA’s research to advance technology and innovate for the benefit of all.
      Jeremy Johnson pilots NASA Glenn Research Center’s PC-12 aircraft during a research flight on Thursday, April 17, 2025.Credit: NASA/Sara Lowthian-Hanna “It’s really exciting to see research hardware come fresh from the lab, and then be strapped onto an aircraft and taken into flight to see if it actually performs in a relevant environment,” Johnson said. “Every flight you do is more than just that flight—it’s one little part of a much bigger, much more ambitious project that’s going on. You remember, this is a small little piece of something that is maybe going to change the frontier of science, the frontier of discovery.”
      Johnson has always had a passion for aviation. In college, he worked as a valet to pay for flying lessons. To hone his skills before Air Force training, one summer he flew across the country in a Cessna with his aunt, a commercial pilot. They flew down the Hudson River as they watched the skyscrapers of New York City whizz by and later to Kitty Hawk, North Carolina, where the Wright brothers made their historic first flight. Johnson even flew skydivers part-time while he was stationed in California.
      Jeremy Johnson in the cockpit of a PC-12 aircraft as it exits the hangar at NASA’s Glenn Research Center in Cleveland before a research flight on Thursday, April 17, 2025.Credit: NASA/Sara Lowthian-Hanna Although he’s spent countless hours flying, he still takes the window seat on commercial flights whenever he can so he can look out the window and marvel at the world below.
      Despite his successes, Johnson’s journey to becoming a pilot wasn’t always smooth. He recalls that as he was about to land after his first solo flight, violent crosswinds blew his plane off the runway and sent him bouncing into the grass. Though he eventually got back behind the stick for another flight, he said that in that moment he wondered whether he had the strength and skills to overcome his self-doubt.
      “I don’t know anyone who flies for a living that had a completely easy path into it,” Johnson said. “To people who are thinking about getting into flying, just forge forward with it. Make people close doors on you, don’t close them on yourself, when it comes to flying or whatever you see yourself doing in the future. I just kept knocking on the door until there was a crack in it.”
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    • By NASA
      2 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      A Boeing-built X-66 full-span model underwent testing in the 11-Foot Transonic Unitary Plan Facility at NASA’s Ames Research Center in California’s Silicon Valley between January and March 2025.NASA / Brandon Torres NASA and Boeing are currently evaluating an updated approach to the agency’s Sustainable Flight Demonstrator project that would focus on demonstrating thin-wing technology with broad applications for multiple aircraft configurations.
      Boeing’s proposed focus centers on a ground-based testbed to demonstrate the potential for long, thin-wing technology. Work on the X-66 flight demonstrator – which currently incorporates a more complex transonic truss braced wing concept that uses the same thin wing technology as well as aerodynamic, structural braces — would pause for later consideration based on the thin-wing testbed results and further truss-braced configuration studies. 
      Under this proposal, all aspects of the X-66 flight demonstrator’s design, as well as hardware acquired or modified for it, would be retained while the long, thin-wing technology is being investigated with more focus. NASA and Boeing would also continue to collaborate on research into the transonic truss-braced wing concept.
      The proposal is based on knowledge gained through research conducted under the Sustainable Flight Demonstrator project so far.
      Since NASA issued the Sustainable Flight Demonstrator award in 2023, the project has made significant progress toward its goal of informing future generations of more sustainable commercial airliners. Boeing and NASA have collaborated on wind tunnel tests, computational fluid dynamics modeling, and structural design and analysis aimed at exploring how best to approach fuel-efficient, sustainable designs.
      This research has built confidence in the substantial potential energy-savings benefits that technologies investigated through the Sustainable Flight Demonstrator project and other NASA research can make possible. The Boeing proposal identifies the thin-wing concept as having broad applications for potential incorporation into aircraft with and without truss braces. 
      NASA and Boeing are discussing potential options for advancing these sustainable flight technologies. NASA’s ultimate goal for this sustainable aircraft research is to achieve substantial improvements for next-generation airliner efficiency, lower costs for travelers, reduced fuel costs and consumption, and increase U.S. aviation’s technological leadership. 
      Facebook logo @NASA@NASAaero@NASA_es @NASA@NASAaero@NASAes Instagram logo @NASA@NASAaero@NASAes Linkedin logo @NASA Explore More
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      Last Updated Apr 24, 2025 EditorLillian GipsonContactRobert Margettarobert.j.margetta@nasa.gov Related Terms
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    • By NASA
      3 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      One of several NASA distributed sensing ground nodes is set up in the foreground while an experimental air taxi aircraft owned by Joby Aviation sits in the background near NASA’s Armstrong Flight Research Center in Edwards, California, on March 12, 2025. NASA is collecting information during this study to help advance future air taxi flights, especially those occurring in cities, to track aircraft moving through traffic corridors and around landing zones.NASA/Genaro Vavuris NASA engineers began using a network of ground sensors in March to collect data from an experimental air taxi to evaluate how to safely integrate such vehicles into airspace above cities – in all kinds of weather.
      Researchers will use the campaign to help improve tools to assist with collision avoidance and landing operations and ensure safe and efficient air taxi operations in various weather conditions.
      For years, NASA has looked at how wind shaped by terrain, including buildings in urban areas, can affect new types of aircraft. The latest test, which is gathering data from a Joby Aviation demonstrator aircraft, looks at another kind of wind – that which is generated by the aircraft themselves.
      Joby flew its air taxi demonstrator over NASA’s ground sensor array near the agency’s Armstrong Flight Research Center in Edwards, California producing air flow data. The Joby aircraft has six rotors that allow for vertical takeoffs and landings, and tilt to provide lift in flight. Researchers focused on the air pushed by the propellers, which rolls into turbulent, circular patterns of wind.
      NASA aeronautical meteorologist Luke Bard adjusts one of several wind lidar (light detection and ranging) sensors near NASA’s Armstrong Flight Research Center in Edwards, California, on March 12, 2025, in preparation to collect data from Joby Aviation’s experimental air taxi aircraft. NASA is collecting information during this study to help advance weather-tolerant air taxi operations for the entire industryNASA/Genaro Vavuris This rolling wind can affect the aircraft’s performance, especially when it’s close to the ground, as well as others flying in the vicinity and people on the ground. Such wind turbulence is difficult to measure, so NASA enhanced its sensors with a new type of lidar – a system that uses lasers to measure precise distances – and that can map out the shapes of wind features.
      “The design of this new type of aircraft, paired with the NASA lidar technology during this study, warrants a better understanding of possible wind and turbulence effects that can influence safe and efficient flights,” said Grady Koch, lead for this research effort, from NASA’s Langley Research Center in Hampton, Virginia.
      Data to Improve Aircraft Tracking
      NASA also set up a second array of ground nodes including radar, cameras, and microphones in the same location as the sensors to provide additional data on the aircraft. These nodes will collect tracking data during routine flights for several months.
      The agency will use the data gathered from these ground nodes to demonstrate the tracking capabilities and functions of its “distributed sensing” technology, which involves embedding multiple sensors in an area where aircraft are operating.
      One of multiple NASA distributed sensing ground nodes is set up in the foreground while an experimental air taxi aircraft owned by Joby Aviation hovers in the background near NASA’s Armstrong Flight Research Center in Edwards, California, on March 12, 2025. NASA is collecting information during this study to help advance future air taxi flights, especially those occurring in cities, to track aircraft moving through traffic corridors and around landing zones.NASA/Genaro Vavuris This technology will be important for future air taxi flights, especially those occurring in cities by tracking aircraft moving through traffic corridors and around landing zones. Distributed sensing has the potential to enhance collision avoidance systems, air traffic management, ground-based landing sensors, and more.
      “Our early work on a distributed network of sensors, and through this study, gives us the opportunity to test new technologies that can someday assist in airspace monitoring and collision avoidance above cities,” said George Gorospe, lead for this effort from NASA’s Ames Research Center in California’s Silicon Valley.
      Using this data from an experimental air taxi aircraft, NASA will further develop the technology needed to help create safer air taxi flights in high-traffic areas. Both of these efforts will benefit the companies working to bring air taxis and drones safely into the airspace.
      The work is led by NASA’s Transformational Tools and Technologies and Convergent Aeronautics Solutions projects under the Transformative Aeronautics Concepts program in support of NASA’s Advanced Air Mobility mission. NASA’s Advanced Air Mobility mission seeks to deliver data to guide the industry’s development of electric air taxis and drones.
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      Last Updated Apr 17, 2025 EditorDede DiniusContactTeresa Whitingteresa.whiting@nasa.govLocationArmstrong Flight Research Center Related Terms
      Armstrong Flight Research Center Advanced Air Mobility Ames Research Center Convergent Aeronautics Solutions Drones & You Flight Innovation Glenn Research Center Langley Research Center Transformational Tools Technologies Transformative Aeronautics Concepts Program Explore More
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    • By NASA
      NASA’s SpaceX 32nd commercial resupply services mission, scheduled to lift off from the agency’s Kennedy Space Center in April, is heading to the International Space Station with experiments that include research on whether plant DNA responses in space correlate to human aging and disease, and measuring the precise effects of gravity on time.  
      Discover more details about the two experiments’ potential impacts on space exploration and how they can enhance life on Earth: 
      “Second Guessing” Time in Space 
      As outlined in Einstein’s general theory of relativity, how we experience the passage of time is influenced by gravity. However, there is strong evidence to believe this theory may not be complete and that there are unknown forces at play. These new physics effects may manifest themselves in small deviations from Einstein’s prediction.  
      The ACES (Atomic Clock Ensemble in Space) investigation is an ESA (European Space Agency) mission that aims to help answer fundamental physics questions. By comparing a highly precise atomic clock in space with numerous ground atomic clocks around the world, ACES could take global time synchronization and clock comparison experiments to new heights.  
      Sponsored by NASA, United States scientists are participating in the mission in various ways, including contributing ground station reference clocks. Scheduled to collect data for 30 months, this vast network of precise clocks is expected to provide fresh insights into the exact relationship between gravity and time, set new limits for unknown forces, and improve global time synchronization.  
      In addition to investigating the laws of physics, ACES will enable new terrestrial applications such as relativistic geodesy, which involves measuring Earth’s shape and gravitational field with extreme precision. These advancements are critical to space navigation, satellite operations, and GPS systems. For example, without understanding the time fluctuations between Earth and medium Earth orbit, GPS would be progressively less accurate. 
      A robotic arm will attach ACES to the Columbus Laboratory module aboard the International Space Station. Image courtesy of ESA  Probing Plants for Properties to Protect DNA 
      The APEX-12 (Advanced Plant EXperiment-12) investigation will test the hypothesis that induction of telomerase activity in space protects plant DNA molecules from damage elicited by cellular stress evoked by the combined spaceflight stressors experienced by seedlings grown aboard the space station. It is expected that results will lead to a better understanding of differences between human and plant telomere behavior in space.   
      Data on telomerase activity in plants could be leveraged not only to develop therapies for age-related diseases in space and on Earth, but also for ensuring food crops are more resilient to spaceflight stress. 
      Telomeres and telomerase influence cell division and cell death, two processes crucial to understanding aging in humans. Telomeres are the protective end caps of chromosomes. Each time a cell divides, the telomeres shorten slightly, essentially acting as a biological clock for cell aging. Conversely, telomerase is an enzyme that adds nucleotide sequences to the ends of telomeres, lengthening them and counteracting their shortening.  
      In humans, telomere shortening is linked to various age-related conditions, such as cardiovascular diseases and certain cancers. In astronauts, studies have shown that spaceflight leads to changes in telomere length, with a notable lengthening observed. This phenomenon carries potential implications for astronaut health outcomes. By contrast, plant telomere length did not change during spaceflight, despite a dramatic increase in telomerase activity.
      A microscopic image of plant telomeres taken under a fluorescent microscope. The chromosomes are highlighted in blue. The telomeres are highlighted in yellow. Image courtesy of Texas A&M University  How this benefits space exploration: Experiments aboard NASA’s SpaceX CRS-32 mission is twofold. One, they have the potential to significantly enhance precision timekeeping, which is necessary to improve space navigation and communication. Two, they can provide insights into how plants adapt to protect DNA molecules from cellular stress caused by environmental factors experienced in spaceflight, in an effort to sustain plant life in space. 
      How this benefits humanity: The experiments conducted on NASA’s SpaceX CRS-32 mission offer a range of potential benefits to humanity. First, improving precision timekeeping for more accurate GPS technology. Second, capturing data about how telomerase activity correlates to cellular stress in plants, which could lead to assays which better correlate telomerase activity and cellular stress and provide fundamental research to contribute to potential therapies for humans.   
      Learn more about the investigations:
      ACES (Atomic Clock Ensemble in Space)

      Atomic Clock Ensemble in Space (ACES) is a European Space Agency (ESA) mission that aims to help answer fundamental physics questions.


      APEX-12 (Advanced Plant EXperiment-12)

      Advanced Plant EXperiment-12 (APEX-12) will test the hypothesis that induction of telomerase, a protein complex, activity in space protects plant DNA molecules from damage elicited by cellular stress evoked by the combined spaceflight stressors experienced by seedlings grown aboard the space station.


      About BPS 
      NASA’s Biological and Physical Sciences Division pioneers scientific discovery and enables exploration by using space environments to conduct investigations not possible on Earth. Studying biological and physical phenomenon under extreme conditions allows researchers to advance the fundamental scientific knowledge required to go farther and stay longer in space, while also benefitting life on Earth. 
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