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Overhead aerial view of nuclear powered attack submarine USS Sargo (SSN-583) underway,

The construction of the atomic bomb, Little Boy, weighing 9,700 pounds and 10 feet in length.

WWII advertisement for women working in hospitals.

World War II poster. The top 2/3rds of the poster is a half-length illustration of an immaculately groomed young woman staring off into the distance as she clutches several sheets of correspondence with both her hands. She wears a mauve jacket or…

Explorer I was launched on January 31, 1958, four months after the Soviet Union launched the Sputnik satellite.

The Soviets intended to use this rocket and capsule to send humans to the moon. The program lacked funding and, after four failed attempts, the program was abandoned in 1974.

Astronaut Edwin E. Aldrin Jr.,Lunar Module (LM) pilot, walks near the module as a picture is taken of him. Discoloration is visible on his boots and suit from the lunar soil adhering to them. Reflection of the LM and Astronaut Niel A. Armstrong is…