On Tuesday morning, the Doomsday Clock was set at 89 seconds to midnight, which is the closest it has ever been to midnight in the 78 years since it started running.

The clock had stood at 90 seconds to midnight for the past two years and “when you are at this precipice, the one thing you don’t want to do is take a step forward,” said Daniel Holz, ...

In 2020, it was set at 100 seconds due to escalating nuclear tensions and climate change neglect. The clock remained at 90 seconds for two consecutive years before being moved closer this year.