From the height of the Cold War to the ongoing threat of nuclear holocaust, trace the history of this iconic timepiece. When it first appeared, the hands showed seven minutes to midnight, indicating how close scientists believed the world was coming to doomsday. Over the years, the clock has been reset more than 17 times, as global events have heightened or lessened the risk of nuclear war. Now, History tells the story of this powerful symbol, detailing how artist Martyl Langsdorf, wife of a Manhattan Project physicist, was commissioned to create a symbol representing nuclear danger. Explore the events that led to the clock's two most extreme settings, and hear from the board in charge of changing the clock how they decide when to adjust it. Featuring footage from some of the most remarkable events of the twentieth and twenty-first centuries, The Doomsday Clock is captivating look at the symbolic public warning system that has become a part of history.