![The Doomsday Clock moves to 90 seconds to midnight, signaling more peril than ever](https://media.npr.org/assets/img/2023/01/24/ap23024544947796_wide-101905d6aae2c36fe3fa74c223e04677904dacd1-s1400-c100.jpg)
The Doomsday Clock moves to 90 seconds to midnight, signaling more peril than ever
The world is closer to catastrophe than it ever has been, the Bulletin of the Atomic Scientists said on Tuesday. The group's experts called out Russia's invasion of Ukraine and other threats.