The "doomsday clock," symbolizing how close humanity is to destruction, ticked one second closer to midnight Tuesday – the closest it has ever been.

As wars edge closer to nuclear flashpoints and climate collapse accelerates, the Doomsday Clock prepares to reveal how near ...

We’re once again approaching the annual resetting of the Doomsday Clock. Last January, the Science and Security Board of the Bulletin of Atomic Scientists, a group of very smart people, ...