

The Soviet Union had tested its first atomic bomb and the nuclear arms race was just hitting its stride. His first adjustment, in October 1949, reflected an increasingly parlous set of circumstances. Who sets the Doomsday Clock?įrom its conception until his death in 1973, the clock was set by Manhattan Project scientist and Bulletin editor Eugene Rabinowitch, largely according to the current state of nuclear affairs. As a result, the Doomsday Clock first emerged as a graphic concept on the cover of the Bulletin’s June 1947 edition. Two years after the atomic bombings of Hiroshima and Nagasaki, this community of nuclear experts was clearly troubled by the implications of nuclear warfare. The origins of the Doomsday Clock date to 1947, when a group of atomic researchers who had been involved with developing nuclear weapons for the United States’ Manhattan Project began publishing a magazine called Bulletin of the Atomic Scientists. Image Credit: United States Department of Energy, Public domain, via Wikimedia Commons The Trinity test of the Manhattan Project was the first detonation of a nuclear weapon
