Multimedia Gallery
- Search Terms: U.S.
Magazine cover depicting the attack on Korean Airlines flight 007.
The U.S. Exploring Expedition included a formidable group of botanists, naturalists, artists, taxidermists, and other scientists.
A backup Transit 5-A satellite from the 1970s.
Navigation cadets of the 477th Bombardment Group.
Gee receivers like this one were used extensively in the Allied bombing campaigns over Europe during World War II.
Joseph Guenther used a Defense Advanced GPS Receiver (DAGR) to direct artillery fire.
The U.S. Naval Observatory Alternate Master Clock at Schriever Air Force Base.
Used to provide radio time signals to ships and aircraft.
Aviator Ruth Elder and her co-pilot/instructor George Haldeman disappeared over the Atlantic creating a desperate scramble to determine their whereabouts.
