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Retired Air Force Col. Rolando Aguilar, a former Texas Air National Guard F-16 Fighting Falcon pilot, remembers the morning of Sept. 11, […]

Maryland had four delegates to the Second Continental Congress, which adopted the Declaration of Independence on July 4, 1776. Charles Carroll had the most to lose.  Source: […]

After the 9/11 attacks, watching from the tarmac was no longer enough for Army Lt. Col. Julie Kendrick. She traded in her […]

Explore This Section Science Citizen Science Help Refine Data from Space… Overview Resources Opportunities Citizen Science Highlights About Science Activation   How […]

6 min read NASA, IBM Launch AI Foundation Model for Lunar Science A 10-image mosaic captured by NASA’s Lunar Reconnaissance Orbiter’s Narrow […]

Earth Observatory Science Earth Observatory Drought Intensifies Across… Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land […]

X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; Infrared: NASA/ESA/CSA/STScI; Image Processing: NASA/CXC/SAO/L. Frattare and J. Major Two galaxies merge at a furious rate in this […]

NASA’s SpaceX Crew-12 members suit up in the Neil A. Armstrong Operations and Checkout Building at the agency’s Kennedy Space Center in […]

Poynting crater and Keeler crater are visible side by side in the lower right portion of this image of the Moon’s far […]

APOD Science APOD APOD: 2026 September 11 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy […]