The "Doomsday Clock" -- a symbolic clock that represents how close humanity is to global catastrophe -- has moved closer to midnight.

Earth is closer than it’s ever been to destruction as Russia, China, the U.S. and other countries become “increasingly aggressive, adversarial, and nationalistic,” The Bulletin of The Atomic Scientist...

Familiar risks to human existence such as nuclear weapons and climate change were cited by the scientists, along with new technologies like artificial intelligence, which they argued is being used to ...