This section provides an overview of the history of the Manhattan Project, the key organizations involved, the science behind the bomb, and more.
The Alsos Mission’s goal was to learn how close Germany was to developing its own atomic weapon.
On February 27, 1943, nine Norwegian commandos sabotaged the German-held Vemork plant outside of Rjukan, Norway. Operation Gunnerside successfully set back Germany’s atomic bomb program.
Security and Secrecy
A key component of keeping the Manhattan Project secret was making sure Project sites were secret and secure.