Introduction

From 1942 to 1945, the Manhattan Project—an ambitious effort to harness the power of yet unimaginable science and technology—paired the world’s greatest scientific minds with thousands of skilled and determined Americans. Their efforts created the planet’s first nuclear weapons and ended the most terrible war in the history of humanity…and it happened in secret.

Keeping the Manhattan Project’s secrets saved countless lives, preserving and protecting the progress of literally earth-shattering new technologies. Secrets shrouded incredible scientific technology and the efforts of thousands of patriotic citizens in a seemingly impenetrable air of mystery.

Learn More at NPS.gov