The Doomsday Clock has been set at 85 seconds to midnight, the closest it has ever been to midnight, according to the ...

On Tuesday, the Bulletin of the Atomic Scientists set the clock at 85 seconds to midnight, the closest it has ever been to ...

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 most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In A Nutshell The world’s most precise clocks are changing how we understand ...

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

The Bulletin of the Atomic Scientists announced on Jan. 27 that the hands of the Doomsday Clock moved forward four seconds ...

The human race is at its closest point yet to destroying itself, according to a reset of the ominous but symbolic "Doomsday ...

Nuclear clocks are the next big thing in ultra-precise timekeeping. Recent publications in the journal Nature propose a new method and new technology to build the clocks. Timekeeping has become more ...

As well as being useful for creating an optical ion clock, this multi-ion capability could also be exploited to create quantum-computing architectures based on multiple trapped ions. And because the ...

Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock.

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