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    • By NASA
      Insights into metal alloy solidification

      Researchers report details of phase and structure in the solidification of metal alloys on the International Space Station, including formation of microstructures. Because these microstructures determine a material’s mechanical properties, this work could support improvements in techniques for producing coatings and additive manufacturing or 3D printing processes.

      METCOMP, an ESA (European Space Agency) investigation, studied solidification in microgravity using transparent organic mixtures as stand-ins for metal alloys. Conducting the research in microgravity removed the influence of convection and other effects of gravity. Results help scientists better understand and validate models of solidification mechanisms, enabling better forecasting of microstructures and improving manufacturing processes.
      Image from the METCOMP investigation of how a metal alloy could look like as it solidifies. E-USOC Measuring the height of upper-atmospheric electrical discharges

      Researchers determined the height of a blue discharge from a thundercloud using ground-based electric field measurements and space-based optical measurements from Atmosphere-Space Interactions Monitor (ASIM). This finding helps scientists better understand how these high-altitude lightning-related events affect atmospheric chemistry and could help improve atmospheric models and climate and weather predictions.

      ESA’s ASIM is an Earth observation facility that studies severe thunderstorms and upper-atmospheric lighting events and their role in the Earth’s atmosphere and climate. Upper-atmospheric lightning, also known as transient luminous events, occurs well above the altitudes of normal lightning and storm clouds. The data collected by ASIM could support research on the statistical properties of many upper atmosphere lightning events, such as comparison of peak intensities of blue and red pulses with reports from lightning detection networks.
      An artist’s impression of a blue jet as observed from the International Space Station.Mount Visual/University of Bergen/DTU Modeling a complex neutron star

      Scientists report that they can use modeling of neutron star PSRJ1231−1411’s X-ray pulses to infer its mass and radius and narrow the possible behaviors of the dense matter at its core. This finding provides a better understanding of the composition and structure of these celestial objects, improving models that help answer questions about conditions in the universe.

      The Neutron star Interior Composition Explorer provides high-precision measurements of pulses of X-ray radiation from neutron stars. This particular neutron star presented challenges in finding a fit between models and data, possibly due to fundamental issues with its pulse profile. The authors recommend a program of simulations using synthetic data to determine whether there are fundamental issues with this type of pulse profile that could prevent efforts to obtain tighter and more robust constraints.
      Concentrators on the Neutron star Interior Composition Explorer instrument.NASAView the full article
    • By NASA
      6 Min Read NASA International Space Apps Challenge Announces 2024 Global Winners
      The 2024 NASA Space Apps Challenge was hosted at 485 events in 163 countries and territories. Credits: NASA NASA Space Apps has named 10 global winners, recognizing teams from around the world for their exceptional innovation and collaboration during the 2024 NASA Space Apps Challenge. As the largest annual global hackathon, this event invites participants to leverage open data from NASA and its space agency partners to tackle real-world challenges on Earth and in space.
      Last year’s hackathon welcomed 93,520 registered participants, including space, science, technology, and storytelling enthusiasts of all ages. Participants gathered at local events in 163 countries and territories, forming teams to address the challenges authored by NASA subject matter experts. These challenges included subjects/themes/questions in ocean ecosystems, exoplanet exploration, Earth observation, planetary seismology, and more.
      The 2024 Global Winners were determined out of 9,996 project submissions and judged by subject matter experts from NASA and space agency partners.
      “These 10 exceptional teams created projects that reflect our commitment to understanding our planet and exploring beyond, with the potential to transform Earth and space science for the benefit of all,” said Dr. Keith Gaddis, NASA Space Apps Challenge program scientistat NASA Headquarters in Washington. “The NASA Space Apps Challenge showcases the potential of every idea and individual. I am excited to see how these innovators will shape and inspire the future of science and exploration.”
      You can watch the Global Winners Announcement here to meet these winning teams and learn about the inspiration behind their projects.
      2024 NASA Space Apps Challenge Global Winners
      Best Use of Science Award: WMPGang
      Team Members: Dakota C., Ian C., Maximilian V., Simon S.
      Challenge: Create an Orrery Web App that Displays Near-Earth Objects
      Country/Territory: Waterloo,Canada
      Using their skills in programming, data analysis, and visualization, WMPGang created a web app that identifies satellite risk zones using real-time data on Near-Earth Objects and meteor streams.
      Learn more about WMPGang’s SkyShield: Protecting Earth and Satellites from Space Hazards project Best Use of Data Award: GaamaRamma
      Team Members: Aakash H., Arun G., Arthur A., Gabriel A., May K.
      Challenge: Leveraging Earth Observation Data for Informed Agricultural Decision-Making
      Country/Territory: Universal Event, United States
      GaamaRamma’s team of tech enthusiasts aimed to create a sustainable way to help farmers efficiently manage water availability in the face of drought, pests, and disease.
      Learn more about GaamaRamma’s Waterwise project Best Use of Technology Award: 42 QuakeHeroes
      Team Members: Alailton A., Ana B., Gabriel C., Gustavo M., Gustavo T., Larissa M.
      Challenge: Seismic Detection Across the Solar System
      Country/Territory: Maceió, Brazil
      Team 42 QuakeHeroes employed a deep neural network model to identify the precise locations of seismic events within time-series data. They used advanced signal processing techniques to isolate and analyze unique components of non-stationary signals.
      Learn more about 42 QuakeHeroes’ project Galactic Impact Award: NVS-knot
      Team Members: Oksana M., Oleksandra M., Prokipchyn Y., Val K.
      Challenge:  Leveraging Earth Observation Data for Informed Agricultural Decision-Making
      Country/Territory: Kyiv, Ukraine
      The NVS-knot team assessed planting conditions using surface soil moisture and evapotranspiration data, then created an app that empowers farmers to manage planting risks.
      Learn more about NVS-knot’s 2plant | ! 2plant project Best Mission Concept Award: AsturExplorers
      Team Members: Coral M., Daniel C., Daniel V., Juan B., Samuel G., Vladimir C.
      Challenge: Landsat Reflectance Data: On the Fly and at Your Fingertips
      Country/Territory: Gijón, Spain
      AsturExplorers created Landsat Connect, a web app that provides a simple, intuitive way to track Landast satellites and access Landsat surface reflectance data. The app also allows users to set a target location and receive notifications when Landsat satellites pass over their area.
      Learn more about AsturExplorers’ Landsat Connect project Most Inspirational Award: Innovisionaries
      Team Members: Rikzah K., Samira K., Shafeeqa J., Umamah A.
      Challenge: SDGs in the Classroom
      Country/Territory: Sharjah, United Arab Emirates
      Innovisionaries developed Eco-Metropolis to inspire sustainability through gameplay. This city-building game engages players in making critical urban planning and resource management decisions based on real-world environmental data.
      Learn more about Innovisionaries’ Eco-Metropolis: Sustainable City Simulation project Best Storytelling Award: TerraTales
      Team Members: Ahmed R., Fatma E., Habiba A., Judy A., Maya M.
      Challenge: Tell Us a Climate Story!
      Country/Territory: Cairo, Egypt
      TerraTales shared stories of how Earth’s changing climate affects three unique regions: Egypt, Brazil, and Germany. The web app also features an artificial intelligence (AI) model for climate forecasting and an interactive game to encourage users to make eco-friendly choices.
      Learn more about TerraTale’s project Global Connection Award: Asteroid Destroyer
      Team Members: Kapeesh K., Khoi N., Sathyajit L., Satyam S.
      Challenge: Navigator for the Habitable Worlds Observatory (HWO): Mapping the Characterizable Exoplanets in our Galaxy
      Country/Territory: Saskatoon, Canada
      Team Asteroid Destroyer honed in on exoplanets, utilizing data processing and machine learning techniques to map exoplanets based on size, temperature, and distance.
      Learn more about Asteroid Destroyer’s project Art & Technology Award: Connected Earth Museum
      Team Members: Gabriel M., Luc R., Lucas R., Mattheus L., Pedro C., Riccardo S.
      Challenge: Imagine our Connected Earth
      Country/Territory: Campinas, Brazil
      Team Connected Earth Museum created an immersive virtual museum experience to raise awareness of Earth’s changing climate. An AI host guides users through an interactive gallery featuring 3D and 2D visualizations, including a time series on Earth and ocean temperatures, population density, wildfires, and more.
      Learn more about Connected Earth Museums’ project Local Impact Award: Team I.O.
      Team Members: Frank R., Jan K., Raphael R., Ryan Z., Victoria M.
      Challenge: Community Mapping
      Country/Territory: Florianópolis, Brazil
      Team I.O. bridges the gap between complex Geographic Information Systems data and user-friendly communication, making critical environmental information accessible to everyone, regardless of technical expertise.
      Learn more about Team I.O.’s G.R.O.W. (Global Recovery and Observation of Wildfires) project Want to take part in the 2025 NASA Space Apps Challenge? Mark your calendars for October 4 and 5! Registration will open in July. At that time, participants will be able to register for a local event hosted by NASA Space Apps leads from around the world. You can stay connected with NASA Space Apps on Facebook, Instagram, and X.
      Space Apps is funded by NASA’s Earth Science Division through a contract with Booz Allen Hamilton, Mindgrub, and SecondMuse.
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      Last Updated Jan 16, 2025 Related Terms
      STEM Engagement at NASA Earth View the full article
    • By Space Force
      The Space Force Year in Review is a collection of photos that showcase the men and women of the U.S. Space Force participating in activities and operations necessary to develop and protect U.S. interests in space.

      View the full article
    • By Space Force
      The Space Force Year in Review is a collection of photos that showcase the men and women of the U.S. Space Force participating in activities and operations necessary to develop and protect U.S. interests in space.

      View the full article
    • By NASA
      Creating a golden streak in the night sky, a SpaceX Falcon 9 rocket carrying Firefly Aerospace’s Blue Ghost Mission One lander soars upward after liftoff from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Wednesday, Jan. 15, as part of NASA’s CLPS (Commercial Lunar Payload Services) initiative. The Blue Ghost lander will carry 10 NASA science and technology instruments to the lunar surface to further understand the Moon and help prepare for future human missions.Credit: NASA/Frank Michaux A suite of NASA scientific investigations and technology demonstrations is on its way to our nearest celestial neighbor aboard a commercial spacecraft, where they will provide insights into the Moon’s environment and test technologies to support future astronauts landing safely on the lunar surface under the agency’s Artemis campaign.
      Carrying science and tech on Firefly Aerospace’s first CLPS or Commercial Lunar Payload Services flight for NASA, Blue Ghost Mission 1 launched at 1:11 a.m. EST aboard a SpaceX Falcon 9 rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida. The company is targeting a lunar landing on Sunday, March 2.
      “This mission embodies the bold spirit of NASA’s Artemis campaign – a campaign driven by scientific exploration and discovery,” said NASA Deputy Administrator Pam Melroy. “Each flight we’re part of is vital step in the larger blueprint to establish a responsible, sustained human presence at the Moon, Mars, and beyond. Each scientific instrument and technology demonstration brings us closer to realizing our vision. Congratulations to the NASA, Firefly, and SpaceX teams on this successful launch.” 
      Once on the Moon, NASA will test and demonstrate lunar drilling technology, regolith (lunar rocks and soil) sample collection capabilities, global navigation satellite system abilities, radiation tolerant computing, and lunar dust mitigation methods. The data captured could also benefit humans on Earth by providing insights into how space weather and other cosmic forces impact our home planet.  
      “NASA leads the world in space exploration, and American companies are a critical part of bringing humanity back to the Moon,” said Nicola Fox, associate administrator, Science Mission Directorate, NASA Headquarters in Washington. “We learned many lessons during the Apollo Era which informed the technological and science demonstrations aboard Firefly’s Blue Ghost Mission 1 – ensuring the safety and health of our future science instruments, spacecraft, and, most importantly, our astronauts on the lunar surface. I am excited to see the incredible science and technological data Firefly’s Blue Ghost Mission 1 will deliver in the days to come.”
      As part of NASA’s modern lunar exploration activities, CLPS deliveries to the Moon will help humanity better understand planetary processes and evolution, search for water and other resources, and support long-term, sustainable human exploration of the Moon in preparation for the first human mission to Mars. 
      There are 10 NASA payloads flying on this flight:
      Lunar Instrumentation for Subsurface Thermal Exploration with Rapidity (LISTER) will characterize heat flow from the interior of the Moon by measuring the thermal gradient and conductivity of the lunar subsurface. It will take several measurements to about a 10-foot final depth using pneumatic drilling technology with a custom heat flow needle instrument at its tip. Lead organization: Texas Tech University  Lunar PlanetVac (LPV) is designed to collect regolith samples from the lunar surface using a burst of compressed gas to drive the regolith into a sample chamber for collection and analysis by various instruments. Additional instrumentation will then transmit the results back to Earth. Lead organization: Honeybee Robotics   Next Generation Lunar Retroreflector (NGLR) serves as a target for lasers on Earth to precisely measure the distance between Earth and the Moon. The retroreflector that will fly on this mission could also collect data to understand various aspects of the lunar interior and address fundamental physics questions. Lead organization: University of Maryland Regolith Adherence Characterization (RAC) will determine how lunar regolith sticks to a range of materials exposed to the Moon’s environment throughout the lunar day. The RAC instrument will measure accumulation rates of lunar regolith on the surfaces of several materials including solar cells, optical systems, coatings, and sensors through imaging to determine their ability to repel or shed lunar dust. The data captured will allow the industry to test, improve, and protect spacecraft, spacesuits, and habitats from abrasive regolith. Lead organization: Aegis Aerospace  Radiation Tolerant Computer (RadPC) will demonstrate a computer that can recover from faults caused by ionizing radiation. Several RadPC prototypes have been tested aboard the International Space Station and Earth-orbiting satellites, but now will demonstrate the computer’s ability to withstand space radiation as it passes through Earth’s radiation belts, while in transit to the Moon, and on the lunar surface. Lead organization: Montana State University  Electrodynamic Dust Shield (EDS) is an active dust mitigation technology that uses electric fields to move and prevent hazardous lunar dust accumulation on surfaces. The EDS technology is designed to lift, transport, and remove particles from surfaces with no moving parts. Multiple tests will demonstrate the feasibility of the self-cleaning glasses and thermal radiator surfaces on the Moon. In the event the surfaces do not receive dust during landing, EDS has the capability to re-dust itself using the same technology. Lead organization: NASA’s Kennedy Space Center  Lunar Environment heliospheric X-ray Imager (LEXI) will capture a series of X-ray images to study the interaction of solar wind and the Earth’s magnetic field that drives geomagnetic disturbances and storms. Deployed and operated on the lunar surface, this instrument will provide the first global images showing the edge of Earth’s magnetic field for critical insights into how space weather and other cosmic forces surrounding our planet impact it. Lead organizations: NASA’s Goddard Space Flight Center, Boston University, and Johns Hopkins University  Lunar Magnetotelluric Sounder (LMS) will characterize the structure and composition of the Moon’s mantle by measuring electric and magnetic fields. This investigation will help determine the Moon’s temperature structure and thermal evolution to understand how the Moon has cooled and chemically differentiated since it formed. Lead organization: Southwest Research Institute Lunar GNSS Receiver Experiment (LuGRE) will demonstrate the possibility of acquiring and tracking signals from Global Navigation Satellite System constellations, specifically GPS and Galileo, during transit to the Moon, during lunar orbit, and on the lunar surface. If successful, LuGRE will be the first pathfinder for future lunar spacecraft to use existing Earth-based navigation constellations to autonomously and accurately estimate their position, velocity, and time. Lead organizations: NASA Goddard, Italian Space Agency Stereo Camera for Lunar Plume-Surface Studies (SCALPSS) will use stereo imaging photogrammetry to capture the impact of rocket plume on lunar regolith as the lander descends on the Moon’s surface. The high-resolution stereo images will aid in creating models to predict lunar regolith erosion, which is an important task as bigger, heavier payloads are delivered to the Moon in close proximity to each other. This instrument also flew on Intuitive Machine’s first CLPS delivery. Lead organization: NASA’s Langley Research Center  “With 10 NASA science and technology instruments launching to the Moon, this is the largest CLPS delivery to date, and we are proud of the teams that have gotten us to this point,” said Chris Culbert, program manager for the Commercial Lunar Payload Services initiative at NASA’s Johnson Space Center in Houston. “We will follow this latest CLPS delivery with more in 2025 and later years. American innovation and interest to the Moon continues to grow, and NASA has already awarded 11 CLPS deliveries and plans to continue to select two more flights per year.”
      Firefly’s Blue Ghost lander is targeted to land near a volcanic feature called Mons Latreille within Mare Crisium, a more than 300-mile-wide basin located in the northeast quadrant of the Moon’s near side. The NASA science on this flight will gather valuable scientific data studying Earth’s nearest neighbor and helping pave the way for the first Artemis astronauts to explore the lunar surface later this decade.
      Learn more about NASA’s CLPS initiative at:
      https://www.nasa.gov/clps
      -end-
      Amber Jacobson / Karen Fox
      Headquarters, Washington
      202-358-1600
      amber.c.jacobson@nasa.gov / karen.c.fox@nasa.gov
      Natalia Riusech / Nilufar Ramji
      Johnson Space Center, Houston
      281-483-5111
      nataila.s.riusech@nasa.gov / nilufar.ramji@nasa.gov
      Antonia Jaramillo
      Kennedy Space Center, Florida
      321-501-8425
      antonia.jaramillobotero@nasa.gov
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      Last Updated Jan 15, 2025 LocationNASA Headquarters Related Terms
      Commercial Lunar Payload Services (CLPS) Artemis Earth's Moon Johnson Space Center Kennedy Space Center Lunar Science Science & Research Science Mission Directorate View the full article
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