The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history. Here's a look at how — and why — it's moved.

The Doomsday Clock is a metaphor for how close the world is to being inhabitable for humanity. Scientists just set the new time for 2025.

The Bulletin of Atomic Scientists announced Tuesday that the "Doomsday Clock" is now set to 89 seconds to midnight.

On January 28, the Bulletin of the Atomic Scientists updated the Doomsday Clock from 90 to 89 seconds until "midnight," as world-ending threats continue escalating at

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine and other factors underlying the risks of global catastrophe.

The Chicago-based Bulletin of the Atomic Scientists, which runs the clock, decided to move the clock one second closer to midnight because of climate change, nuclear threats and biological hazards.

What is the Doomsday Clock? It's 2025 and scientists have reset the clock closer to midnight and global catastrophe. Here's what it all means.

Humanity has grown closer to global disaster in the past year, with the Doomsday Clock moving to 89 seconds to midnight.

In a statement outlining the change, the Board highlighted three main reasons for “moving the Doomsday Clock from 90 seconds to 89 seconds to midnight.” These include ongoing nuclear risks, accelerating climate disasters, and emerging biological and technological dangers.

Too few leaders have learned the critical lesson that international cooperation is essential to pandemic prevention, preparedness and response. A cycle of panic and neglect has historically characterized the politics of pandemics.

I interviewed three anti-nuke activists to understand the Doomsday Clock and how our society thinks about the very real threat of nuclear war. “Dear young