Explainer: What is the 'Doomsday Clock' and how does it work?
This year, its setting will reflect for the first time a world in which Russia's invasion of Ukraine has revived fears of nuclear war.
Tue Jan 24 2023
'Doomsday Clock' stuck at 100 seconds to midnight
The 'Doomsday Clock' will remain at 100 seconds to midnight, amid the threats from COVID-19, nuclear war and climate change.
Thu Jan 28 2021