The concept comes from the work of Edward Norton Lorenz, a mathematician and meteorologist who defined the butterfly effect as: “The phenomenon that a small alteration in the state of a dynamical ...

Introduced in 1947, the clock is a symbolic instrument informing the public when humankind is facing imminent disaster. The movement of its hands, either forward or backward, is decided by the Science ...

CHICAGO, Illinois (CNN) --The hands on the Bulletin of Atomic Scientists' Doomsday Clock were moved forward Wednesday to reflect what the group believes is a greater risk of nuclear conflict in ...