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DOD in Photos focuses in on the people and activities of the Defense Department around the world while highlighting the extraordinary work […]

Earth Observatory Science Earth Observatory A Trio of Tropical Cyclones in… Earth Earth Observatory Image of the Day EO Explorer Topics All […]

APOD Science APOD APOD: 2026 September 4 – Na… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD […]

Venus is seen as it disappears behind the Moon at the start of the occultation on June 17, 2026, from the Mary […]

Two technicians at NASA’s Michoud Assembly Facility in New Orleans stand around one of the four RS-25 engines for the agency’s SLS […]

Mountaineering has long been a necessary skill for U.S. service members in battle and at the Army Mountain Warfare School, they learn […]

From its introduction into the Navy in the late 1800s, baseball became a phenomenon that U.S. sailors — many of whom were […]

The Space Force structure is unique. While it is a separate and distinct branch of the armed services, it is organized under […]

From Revolutionary War battlefields to today’s frontlines, the Purple Heart has served as a recognition of sacrifice and heroism. How well do […]

Undefeated in battle, the USS Constitution is more than 200 years old and still afloat. Can you emerge victorious in a quiz […]