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For more information, contact Jonathan E. Jones, Langley Research Center, [email protected] Download the PDF version The purpose of this Technical Bulletin is to communicate the risks associated with freeze–thaw cycles in hydrazine monopropellant systems and to provide general recommendations for mitigating damage, operational hazards, and loss of system reliability in propulsion and auxiliary hydrazine systems. … Read more
Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science … Read more
APOD Science APOD APOD: 2026 September 23 – A… 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. AfterBefore A … Read more
Earth Observatory Science Earth Observatory Boom Year for Desert Blooms 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 … Read more
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Perseverance Rover Mars Curiosity Rover Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 3 min read Curiosity Blog, Sols 5010-5015: … Read more
APOD Science APOD APOD: 2026 September 22 –… 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. Chance Triple Alignment: … Read more
NASA kicked off its State Hubs for Skilled Technical Workforce initiative Sept. 15, 2026 with awardees at Space Center Houston. Agency leadership convened State Hub partners to align strategy and build momentum while focusing on partnerships, small business engagement, and next steps. Elaine Ho, associate administrator for NASA’s Office of STEM Engagement in Washington, addresses … Read more
3 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Top Row (from left to right): Michael Stenger, Joe Dervay, Steve Piper, Dave Francisco, Craig Kutz, Matthew Makowski, Alex Garbino, Hiroki Bochimoto, Doug Ebert, James Locke, Raffi Kuyumjian. Bottom Row (from left to right): Mark Crowther, Stephan Moll, Doug Ebersole, Mike Gernhardt, David Southerland, … Read more
6 min read NASA-Funded Research Finds Complex Life Defying Record Heat This video shows Incendiamoeba cascadensis motility at 60ºC. When pushed to its limits in the lab, I. cascadensis can remain partially active at 150.8 degrees Fahrenheit (66 degrees Celsius) and can recover from exposure to a staggering 158 degrees Fahrenheit (70 degrees Celsius) for … Read more
X-ray: NASA/CXC/Univ. of Alabama/M. Muhibullah et al.; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/N. Wolk Using NASA’s Chandra X-ray Observatory, researchers found mysterious objects that give off unusually low-energy X-rays but intense levels of ultraviolet radiation. One of the galaxies they studied, M101, is pictured here in this image released on Sept. 9, 2026. Astronomers suggest these … Read more
