The Doomsday Clock is a metaphorical clock that shows how close the world is to a big, human-made disaster - global apocalypse. It isn’t a real clock that's meant to be taken literally but rather, "midnight" on this clock represents the end of the world. The closer the hands are to midnight, the more danger the experts think we are in. Who updates it? A group called the Bulletin of the Atomic Scientists updates the clock, a group of scientists and other very smart people like Nobel Prizes winner