The Soviet Union made no announcement after its first atomic bomb test in 1949—but the US did. This is the hitherto untold story of how the secret was extracted from rainwater.

Herbert Friedman, Luther B. Lockhart and Irving H. Blifford

Image : Joe-1, 29 August 1949. Photo from Peter Kuran’s film « Trinity and Beyond: The Atomic Bomb Movie, » as displayed on nuclearweaponsarchive.org, and used with permission of Peter Kuran.