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TB 26-08 Complex Modes in Lightly Damped Structural Systems: A Two-Mode Interaction PerspectiveFor 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 […]
NASA JPL Testing Readies Voyager Technologies Lander for Moon MissionA commercial lander that will be at the forefront of NASA’s efforts to establish a Moon Base, humanity’s first lunar outpost, has passed a series of critical tests at the agency’s Jet Propulsion Laboratory in Southern California. The tests simulated the extreme temperatures and vacuum of space, as well as the intense shaking and ear-splitting […]
NASA Science, Cargo Launch on 35th SpaceX Resupply Mission to StationNASA’s SpaceX 35th commercial resupply mission lifted off at 6:33 a.m. EDT Tuesday aboard a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida, carrying more than 6,300 pounds of supplies and hardware, bound for the International Space Station. Following its successful launch, the SpaceX Dragon spacecraft will […]
APOD: 2026 October 13 – Desert Stairway to HeavenAPODScienceAPODAPOD: 2026 October 13 –…Today’s APODArchiveSubmissionsIndexSearchCalendarRSSEducationAboutDiscuss 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. OriginalAnnotated Desert Stairway to Heaven Explanation: This stairway in Chile brings you only a little bit closer […]
An Impact Structure With LegsIf the thought of extraterrestrial objects crashing into Earth weren’t creepy enough, behold Australia’s Spider Crater.
NASA’s SpaceX CRS-35 Mission to Launch Health ResearchNASA experiments focused on human and plant health and drug-resistant organisms will travel to the International Space Station aboard SpaceX’s 35th Commercial Resupply Services mission for the agency from Cape Canaveral Space Force Station in Florida, advancing research that benefits life on Earth and future exploration. This research supports astronaut health during long-duration missions through […]
APOD: 2026 October 12 – Jupiter and the MoonsAPODScienceAPODAPOD: 2026 October 12 –…Today’s APODArchiveSubmissionsIndexSearchCalendarRSSEducationAboutDiscuss 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. Jupiter and the Moons Explanation: How many moons can you see? The best answer is five: four […]
Antarctic Sea Ice Grows to Its 2026 MaximumThe ice reached its third-lowest maximum extent since satellite observations began.
APOD: 2026 October 11 – Ice Fishing for Cosmic NeutrinosAPODScienceAPODAPOD: 2026 October 11 – Ice…Today’s APODArchiveSubmissionsIndexSearchCalendarRSSEducationAboutDiscuss 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. Ice Fishing for Cosmic Neutrinos Explanation: Scientists are melting holes in the bottom of the world. […]
NASA to Conduct Flyover, Engage NFL Fans at MetLife StadiumAs part of the agency’s Inspiration Tour flyover, NASA Administrator Jared Isaacman will pilot one of three F-5 fighter jets to kick off the New York Jets vs. Cleveland Browns game in East Rutherford, New Jersey, on Sunday, Oct. 11. NASA team members will engage with fans at the agency’s Experience Zone, located at the […]