Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world ...

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

“The Doomsday Clock’s message cannot be clearer,” the Bulletin of the Atomic Scientists CEO Alexandra Bell said in a ...

Nuclear weapons, climate change and biological threats are the biggest concerns.

The most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In ...

For many years, cesium atomic clocks have been reliably keeping time around the world. But the future belongs to even more accurate clocks: optical atomic clocks. In a few years' time, they could ...

The "Doomsday Clock" is a metaphor for how close humanity is to self-annihilation.

An impending apocalypse is coming faster than we thought, after atomic scientists moved the hands of the "Doomsday Clock" ...

Doomsday Clock moves to 85 seconds to midnight as scientists warn of nuclear war, climate change and AI threats bringing ...

Time will no longer be imposed upon us by a cesium fountain clock at the National Institute of Standards and Technology,” ...

From a design perspective, the Doomsday Clock is remarkably economical. Four dots. Two hands. The universal language of ...

This has now paved the way for a multi-ion optical ytterbium clock that combines the high accuracy of single-ion clocks with ...