The new Doomsday Clock time has been set by the Bulletin of the Atomic Scientists. Here’s what it means.

The clock is a symbolic way to show the public how close scientists believe the world is to a human-made apocalypse.

The experts behind the Doomsday Clock have updated it for another year and revealed the new time it has been set to.

Improvements in clocks are setting the stage for a redefinition of the second. This is an Inside Science story. (Inside Science) -- Earlier this year, in a nondescript lab at the National Institute of ...