Artificial intelligence was not listed as a chief concern two years ago, the last time the Bulletin of the Atomic Scientists moved the clock closer to global catastrophe.

The Doomsday Clock moves to a historic 89 seconds, citing AI and bioengineering risks as major threats to humanity. Explore the implications of this warning

The Doomsday Clock is now set at 89 seconds to midnight, the closest it has ever been to implosion. The proximity to midnight reflects the scale of escalating