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    • By NASA
      The seven-member Expedition 73 crew poses for a portrait inside the International Space Station’s Zvezda service module.Credit: NASA Students in Big Pine Key, Florida, will have the chance to have NASA astronauts aboard the International Space Station answer their prerecorded questions.
      At 10:05 a.m. EDT on Monday, July 14, NASA astronaut Nicole Ayers and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi will answer questions submitted by students.
      Watch the 20-minute Earth-to-space call on NASA STEM’s YouTube Channel.
      The event is hosted by the Seacamp Association of Big Pine Key, Florida, which provides immersive science lessons for youth interested in discovering the sea. The event will be attended by local Monroe County students, as well as national and international campers ages 10-17 years old. The goal of the event is to help students make connections between astronauts training in space and scientists working in the sea.  
      Media interested in covering the event must RSVP by 5 p.m. EDT, Friday, July 11, to Judy Gregoire at: 305-872-2331 or email at: info@seacamp.org.
      For nearly 25 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
      Important research and technology investigations taking place aboard the space station benefit people on Earth and lay the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Golden Age explorers and ensuring the United States continues to lead in space exploration and discovery.
      See videos of astronauts aboard the space station at:
      https://www.nasa.gov/stemonstation
      -end-
      Gerelle Dodson
      Headquarters, Washington
      202-358-1600
      gerelle.q.dodson@nasa.gov
      Sandra Jones
      Johnson Space Center, Houston
      281-483-5111
      sandra.p.jones@nasa.gov
      Share
      Details
      Last Updated Jul 09, 2025 LocationNASA Headquarters Related Terms
      Humans in Space In-flight Education Downlinks International Space Station (ISS) Johnson Space Center Learning Resources NASA Headquarters View the full article
    • By Space Force
      The new facility is enabling Guardians and mission partners to seamlessly monitor space-based sensors and make rapid, data-driven decisions that enhance missile warning and threat responses for the joint force.

      View the full article
    • By NASA
      NASA astronaut Nichole Ayers conducts research operations inside the Destiny laboratory module’s Microgravity Science Glovebox aboard the International Space Station.Credit: NASA Students attending the U.S. Space and Rocket Center Space Camp in Huntsville, Alabama, will have the chance to hear NASA astronauts aboard the International Space Station answer their prerecorded questions.
      At 12:40 p.m. EDT on Tuesday, July 1, NASA astronauts Anne McClain, Jonny Kim, and Nichole Ayers will answer student questions. Ayers is a space camp alumna.
      Watch the 20-minute Earth-to-space call on the NASA STEM YouTube Channel.
      The U.S. Space and Rocket Center will host the downlink while celebrating the 65th anniversary of NASA’s Marshall Space Flight Center. This event is open to the public.
      Media interested in covering the event must RSVP by 5 p.m., Friday, June 27, to Pat Ammons at: 256-721-5429 or pat.ammons@spacecamp.com.
      For nearly 25 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
      Important research and technology investigations taking place aboard the space station benefit people on Earth and lay the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Golden Age explorers and ensuring the United States continues to lead in space exploration and discovery.
      See videos of astronauts aboard the space station at:
      https://www.nasa.gov/stemonstation
      -end-
      Gerelle Dodson
      Headquarters, Washington
      202-358-1600
      gerelle.q.dodson@nasa.gov
      Sandra Jones
      Johnson Space Center, Houston
      281-483-5111
      sandra.p.jones@nasa.gov
      Share
      Details
      Last Updated Jun 25, 2025 LocationNASA Headquarters Related Terms
      Humans in Space In-flight Education Downlinks International Space Station (ISS) Johnson Space Center Learning Resources NASA Headquarters View the full article
    • By NASA
      NASA astronauts (left to right) Anne McClain and Nichole Ayers pose for a portrait together aboard the International Space Station. Moments earlier, Ayers finished trimming McClain’s hair using an electric razor with a suction hose attached that collects the loose hair to protect the station’s atmosphere.NASA Students from New York and Utah will hear from NASA astronauts aboard the International Space Station as they answer prerecorded questions in two separate events.
      At 11:30 a.m. EDT on Monday, June 23, NASA astronauts Nichole Ayers and Anne McClain will answer questions submitted by students from P.S. 71 Forest Elementary School in Ridgewood, New York. Media interested in covering the event must RSVP by 5 p.m. Friday, June 20, to Regina Beshay at: rbeshay2@school.nyc.gov or 347-740-6165.
      At 11:05 a.m. on Friday, June 27, Ayers and McClain will answer questions submitted by students from Douglas Space and Science Foundation, Inc., in Layton, Utah. Media interested in covering the event must RSVP by 5 p.m. Wednesday, June 25, to Sarah Merrill at: sarahmonique@gmail.com or 805-743-3341.
      Watch the 20-minute Earth-to-space calls on NASA STEM YouTube Channel.
      P.S. 71 Forest Elementary School will host kindergarten through fifth grade students. Douglas Space and Science Foundation will host participants from the Science, Technology, Achievement Research camp. Both events aim to inspire students to imagine a future in science, technology, engineering, and mathematics careers through ongoing collaborations, mentorship, and hands-on learning experiences.
      For nearly 25 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
      Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring explorers and ensuring the United States continues to lead in space exploration and discovery.
      See videos of astronauts aboard the space station at:
      https://www.nasa.gov/stemonstation
      -end-
      Gerelle Dodson
      Headquarters, Washington
      202-358-1600
      gerelle.q.dodson@nasa.gov
      Sandra Jones
      Johnson Space Center, Houston
      281-483-5111
      sandra.p.jones@nasa.gov
      Share
      Details
      Last Updated Jun 18, 2025 LocationNASA Headquarters Related Terms
      Humans in Space In-flight Education Downlinks International Space Station (ISS) Johnson Space Center NASA Headquarters View the full article
    • By NASA
      4 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      A lot can change in a year for Earth’s forests and vegetation, as springtime and rainy seasons can bring new growth, while cooling temperatures and dry weather can bring a dieback of those green colors. And now, a novel type of NASA visualization illustrates those changes in a full complement of colors as seen from space.
      Researchers have now gathered a complete year of PACE data to tell a story about the health of land vegetation by detecting slight variations in leaf colors. Previous missions allowed scientists to observe broad changes in chlorophyll, the pigment that gives plants their green color and also allows them to perform photosynthesis. But PACE now allows scientists to see three different pigments in vegetation: chlorophyll, anthocyanins, and carotenoids. The combination of these three pigments helps scientists pinpoint even more information about plant health. Credit: NASA’s Goddard Space Flight Center NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite is designed to view Earth’s microscopic ocean plants in a new lens, but researchers have proved its hyperspectral use over land, as well.
      Previous missions measured broad changes in chlorophyll, the pigment that gives plants their green color and also allows them to perform photosynthesis. Now, for the first time, PACE measurements have allowed NASA scientists and visualizers to show a complete year of global vegetation data using three pigments: chlorophyll, anthocyanins, and carotenoids. That multicolor imagery tells a clearer story about the health of land vegetation by detecting the smallest of variations in leaf colors.
      “Earth is amazing. It’s humbling, being able to see life pulsing in colors across the whole globe,” said Morgaine McKibben, PACE applications lead at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “It’s like the overview effect that astronauts describe when they look down at Earth, except we are looking through our technology and data.”
      Anthocyanins, carotenoids, and chlorophyll data light up North America, highlighting vegetation and its health.Credit: NASA’s Scientific Visualization Studio Anthocyanins are the red pigments in leaves, while carotenoids are the yellow pigments – both of which we see when autumn changes the colors of trees. Plants use these pigments to protect themselves from fluctuations in the weather, adapting to the environment through chemical changes in their leaves. For example, leaves can turn more yellow when they have too much sunlight but not enough of the other necessities, like water and nutrients. If they didn’t adjust their color, it would damage the mechanisms they have to perform photosynthesis.
      In the visualization, the data is highlighted in bright colors: magenta represents anthocyanins, green represents chlorophyll, and cyan represents carotenoids. The brighter the colors are, the more leaves there are in that area. The movement of these colors across the land areas show the seasonal changes over time.
      In areas like the evergreen forests of the Pacific Northwest, plants undergo less seasonal change. The data highlights this, showing comparatively steadier colors as the year progresses.
      The combination of these three pigments helps scientists pinpoint even more information about plant health.
      “Shifts in these pigments, as detected by PACE, give novel information that may better describe vegetation growth, or when vegetation changes from flourishing to stressed,” said McKibben. “It’s just one of many ways the mission will drive increased understanding of our home planet and enable innovative, practical solutions that serve society.”
      The Ocean Color Instrument on PACE collects hyperspectral data, which means it observes the planet in 100 different wavelengths of visible and near infrared light. It is the only instrument – in space or elsewhere – that provides hyperspectral coverage around the globe every one to two days. The PACE mission builds on the legacy of earlier missions, such as Landsat, which gathers higher resolution data but observes a fraction of those wavelengths.
      In a paper recently published in Remote Sensing Letters, scientists introduced the mission’s first terrestrial data products.
      “This PACE data provides a new view of Earth that will improve our understanding of ecosystem dynamics and function,” said Fred Huemmrich, research professor at the University of Maryland, Baltimore County, member of the PACE science and applications team, and first author of the paper. “With the PACE data, it’s like we’re looking at a whole new world of color. It allows us to describe pigment characteristics at the leaf level that we weren’t able to do before.”
      As scientists continue to work with these new data, available on the PACE website, they’ll be able to incorporate it into future science applications, which may include forest monitoring or early detection of drought effects.
      By Erica McNamee
      NASA’s Goddard Space Flight Center, Greenbelt, Md.
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      Last Updated Jun 05, 2025 EditorKate D. RamsayerContactKate D. Ramsayerkate.d.ramsayer@nasa.gov Related Terms
      Earth Goddard Space Flight Center PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem) Explore More
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