Uncovering the Valleys Hidden Below Greenland’s Ice

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Earth Observatory Science Earth Observatory Uncovering the Valleys Hidden… Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technology Snow & Ice Water More Content Collections Global Maps World of Change Articles Earth Matters Blog Blue Marble: Next Generation EO Kids Mission: Biomes About About Us Subscribe 🛜 RSS Contact Us Search   A newly developed method for mapping the bedrock beneath Greenland’s ice sheet reveals the island’s hidden topography. Among the…

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APOD: 2026 September 27 – Andromeda Before and After Photoshop

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APOD Science APOD APOD: 2026 September 27 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. BeforeAfter Andromeda Before and After Photoshop Explanation: What does the Andromeda galaxy really look like? The featured before image shows how our Milky Way Galaxy‘s closest major galactic neighbor really appears in a long exposure through Earth‘s busy…

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APOD: 2026 September 26 – Mirrored Meteor and Milky Way

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APOD Science APOD APOD: 2026 September 26 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Mirrored Meteor and Milky Way Explanation: On August 15, this perseid meteor streaked through night skies over the Observatorio del Roque de los Muchachos at La Palma, Canary Islands, Spain. The bright and colorful meteor trail was captured…

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NASA, Boeing to Provide Update on Starliner Development

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Boeing’s Starliner spacecraft that launched NASA’s Crew Flight Test astronauts Butch Wilmore and Suni Williams to the International Space Station is pictured docked to the Harmony module’s forward port. Credit: NASA During a news conference at 3 p.m. EDT on Monday, Sept. 28, NASA and Boeing leadership will discuss Starliner’s development and plans for regular crew flights to and from the International Space Station. Learn where to watch online: https://www.nasa.gov/live The briefing participants include: NASA Administrator Jared Isaacman Dana Weigel, manager, NASA’s Low Earth Orbit Program Woody Hoburg, NASA astronaut…

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NASA Welcomes San Marino Signing the Artemis Accords  

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Minister of Industry and Technological Research Rossano Fabbri signed on behalf of San Marino. Gregory Mann, NASA Europe representative, and U.S. Consul General in Florence Joseph Tordella participated in the event on Friday, Sept. 25, 2026. Credit: U.S. Department of State The Republic of San Marino became the 76th signatory to the Artemis Accords during a ceremony in the city of Rimini on Friday with NASA and U.S. Department of State officials present.   “San Marino joins a growing coalition of like-minded nations committed to the peaceful, transparent, and responsible exploration…

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NASA Tests Dual Mode Propulsion CubeSat Ahead of Launch

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Spacecraft propulsion traditionally relies on volatile fuels and separate, bulky systems for different types of maneuvering in space. NASA is working to change that paradigm. Engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, recently completed a rigorous series of environmental and physical tests on a new small satellite designed to make spaceflight safer and more efficient. The ASCENT (Advanced Spacecraft Energetic Non-Toxic) Propulsion Dual Mode mission is a flight demonstration of a spacecraft about the size of a large shoebox. The mission will test a single, integrated propulsion…

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2026-2027 DWU: Middle School Design Challenge

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10 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) 2026-2027 DWU: Middle School Design Challenge Overview The 2026-2027 challenge theme is, “Fueling Flight Design Challenge: New Energy Systems.”  As more and more aircraft are a part of the US’ National Airspace System (NAS), NASA and partners at the FAA, at universities, and in the aviation industry are searching for ways to increase safety, make flight more affordable, find new fuels for aircraft, and reduce the amount of time passengers and cargo spend in the air. This year’s Dream…

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2026-2027 DWU: High School Engineering Challenge

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9 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) 2026-2027 DWU: High School Engineering Challenge Challenge Materials Engineering Notebook Template Scoring Rubric Overview The 2026-2027 challenge theme is, “Fueling Flight Design Challenge: New Energy Systems.” As more and more aircraft are a part of the US’ National Airspace System (NAS), NASA and partners at the FAA, at universities, and in the aviation industry are searching for ways to increase safety, make flight more affordable, find new fuels for aircraft, and reduce the amount of time passengers and cargo spend in…

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TB 26-07 Aluminum Alloy 2219 Material Guidance

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For more information, contact Donald S. Parker, Kennedy Space Center, donald.s.parker@nasa.gov Download the PDF version Improper casting and forging processes in the manufacture of aluminum alloy 2219 can lead to microstructural defects that result in a sub-optimal response to anodic surface treatments and an increase in corrosion susceptibility. This Technical Bulletin communicates the risks of improper casting and recommends a homogenizing step followed by multidirectional deformation after conventional direct chill casting, especially for larger castings. 09/24/26 DOC ID: 20260008373 BackgroundAluminum 2219 is an age-hardenable, over-saturated, aluminum-copper alloy developed by Aluminum…

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