The world is on the cusp of a dangerous new nuclear era, and the war in Ukraine might be a glimpse of what is to come. Reflecting this, the hands of the iconic Doomsday Clock, an indicator reflecting the opinion of the Bulletin of the Atomic Scientists as to how close humanity finds itself to self-destruction, were recently moved up 10 seconds — to 90 seconds to midnight. This is the closest they have ever been to Armageddon.