On Tuesday, the clock was set at 89 seconds to midnight — the closest the world has ever been to that marker, according to the Bulletin of the Atomic Scientists, which established the clock in 1947.

To this day, the Bulletin's science and security board, made up of nuclear and climate experts, set the time for the clock. The board has done this since 1973, when it took over from Eugene ...

WASHINGTON, Jan 28 (Reuters) - Atomic scientists on Tuesday moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine, tensions ...