The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the …

Oct 14, 2025 · Manhattan Project, U.S. government research project (1942–45) that produced the first atomic bombs. See Britannica’s interactive timeline of the Manhattan Project.

Jul 26, 2017 · The Manhattan Project was the code name for the American-led effort to develop a functional atomic weapon during World War II.

What is the Manhattan Project? The Manhattan Project was an unprecedented, top-secret World War II government program in which the United States rushed to develop and deploy the …

May 12, 2017 · Here is a brief summary of the Anglo-American effort to develop an atomic bomb during its World War II and its legacies today. The story of the Manhattan Project began in …

May 6, 2024 · How did the Manhattan Project impact World War II? The project led to the development of nuclear bombs that were dropped on the Japanese cities of Hiroshima and …

Fearing what Hitler would do if he had such a devastating new weapon, the United States undertook the "Manhattan Project," the largest, most secretive wartime project in history. The …

Apr 30, 2025 · During World War II, American physicists and engineers conducted a race against Nazi Germany to become the first to exploit the newly understood process of nuclear fission …

The Manhattan Project was a top-secret research and development project during World War II that produced the first atomic bombs. Initiated in 1942, the project's primary objective was to …

Jul 21, 2023 · It resulted in the two atomic bombs dropped on the Japanese cities of Hiroshima and Nagasaki in August 1945, which brought World War II to its end and probably killed more …