If you haven't heard of the Doomsday Clock, here's a brief and terrifying synopsis for you: It was created in 1947 at the University of Chicago as an easy analogy to show people how close we are to armageddon at any given moment. 'Midnight' on the clock represents doomsday, and, obviously, the closer the hands are to midnight, the closer we are to total annihilation.
On January 26, 2917 the Bulletin of Atomic Scientists announced that the Doomsday Clock would be set ahead 30 seconds. We now stand at 2 minutes and 30 seconds to midnight. It's the closest we've come to midnight since the 1950s.