The "Doomsday Clock," a metaphor for how close humanity is to self-annihilation, was moved to 85 seconds to midnight Tuesday, its closest point to catastrophe since the clock made its debut nearly 80 ...

Atomic scientists set their "Doomsday Clock" on Tuesday closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the United States, fraying nuclear arms control, co...

The announcement comes a year into President Donald Trump’s second term in which he has shattered global norms including by ordering unilateral attacks and withdrawing from a slew of international org...