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NASA/John Kraus Sunlight illuminates the exhaust plumes of a SpaceX Falcon 9 rocket carrying the company’s Dragon spacecraft on Oct. 13, 2026. This visual phenomenon is known as a “jellyfish”; it happens near sunrise or sunset when the exhaust plume from the rocket becomes brightly illuminated, creating a glowing shape resembling a jellyfish. The mission … Read more
5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Yi Lin, SPEARS testing and research lead at NASA Langley, holds one of the small coin-cell batteries that had just undergone thermal vacuum testing. NASA/Ryan Hill If you’ve ever had your car start sluggishly, or not at all, on a particularly frigid winter morning, … Read more
As the Artemis II crew members came close to passing behind the Moon and experiencing a planned loss of signal, they captured this image of a crescent Earth setting on the Moon’s limb on April 6, 2026. The edge of the visible surface of the Moon is called the “lunar limb.” Credit: NASA NASA will … Read more
APOD Science APOD APOD: 2026 October 14 – Mars… 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. Mars and … Read more
Earth Observatory Science Earth Observatory Hurricane Simon Lurks Off the… 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
NASA astronaut Christina Koch stands inside Kennedy Space Center’s Vehicle Assembly Building on July 14, 2021, in front of the agency’s Space Launch System (SLS) rocket that ultimately powered the Orion spacecraft on the Artemis I mission. Koch later served as a crew member on the Artemis II mission in 2026, and on Oct. 13, … Read more
3 Min Read Voyager Technologies’ Griffin-1 Completes Environmental Testing at NASA JPL PIA26708 Credits: NASA/JPL-Caltech Photojournal Navigation Science Photojournal Voyager Technologies’… Photojournal Home Photojournal Search Latest Content Galleries Feedback RSS About Downloads Voyager Technologies’ Griffin-1 Completes Environmental Testing at NASA JPL JPEG (30.76 MB) PIA26708 Figure A JPEG (26.47 MB) PIA26708 Figure B JPEG … Read more
For more information, contact Joel W. Sills, Langley Research Center, [email protected] Download the PDF version Complex mode shapes can emerge in a linear structure even when overall damping is low. This behavior can occur when two structural modes are closely spaced in frequency and are coupled through nonproportional damping. As the damping interaction increases, the … Read more
A SpaceX Falcon 9 rocket and Dragon spacecraft launched on Tuesday, Oct. 13, 2026, from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida as part of the company’s 35th Commercial Resupply Services mission to the International Space Station for NASA. Credit: NASA NASA’s SpaceX 35th commercial resupply mission lifted off at … Read more
1 Min Read Comparing Off-World Rover Driving Distances PIA26814 Credits: NASA/JPL-Caltech Photojournal Navigation Science Photojournal Comparing Off-World Rover… Photojournal Home Photojournal Search Latest Content Galleries Feedback RSS About Downloads Comparing Off-World Rover Driving Distances PNG (568.05 KB) Description This infographic illustrates the distances driven by various rovers on the surface of Earth’s Moon and … Read more
