In the final analysis, by showing that 10 heterogenous clocks across three continents could agree with each other to within a ...

At the heart of this change is a new kind of atomic clock that uses light instead of microwaves. This shift means timekeeping could become 1,000 times more accurate than today's standards.

“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...

For the first time, the ratio of the indium to the ytterbium clock reached a total uncertainty below the limit required in the roadmap for redefining the second for such measurements. The concept ...

On a campus in Boulder, Colorado, time just became a little more exact. Inside the National Institute of Standards and Technology, or NIST, a new atomic clock named NIST-F4 has begun to tick ...

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine and other factors underlying the risks of global ...

One example is the atomic clock, which uses the quantum properties of atoms to measure time much more accurately than would be possible with conventional clocks.

Scientists and global leaders revealed on Tuesday that the "Doomsday Clock" has been reset to the closest humanity has ever come to self-annihilation.

Each year for the past 78 years, the Bulletin of the Atomic Scientists has published a new Doomsday Clock, suggesting just how close – or far – humanity is to destroying itself. The next ...

By using paired, offset optical combs and RF electronics, researchers devised a unique atomic-clock architecture.