Development of the Atomic Bomb

The Gadget is suspended by tackle at the top of the tower. Norris Bradbury (left) and an unidentified Project employee stand behind the Gadget. Los Alamos Historical Society Photo Archives, LANL Collection, TR Series.

Los Alamos Historical Society Photo Archives, LANL Collection, TR Series.

The Trinity Test

What was it like to witness this secret test? Click here to learn more.

Photo published by the Nagasaki City Office.

The Atomic Bombings of Hiroshima and Nagasaki

What atomic legacies do we live with today? Click here to learn more.

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The Los Alamos Historical Society preserves, promotes, and communicates the remarkable history and inspiring stories of Los Alamos and its people for our community, for the global audience, and for future generations.