Atomic clocks exploit the properties of atoms to create incredibly precise 'ticks.' Nate Phillips, NIST Most clocks, from ...

What if time could be measured with near-perfect precision? Atomic clocks do exactly that — using atoms as nature’s most ...

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 ...

To find out how clock accuracy is verified and which reference is used for comparison, we visited the Belarusian State Institute of Metrology (BelGIM), where most of the national standards are kept.

Adelaide University researchers have successfully tested a new type of portable atomic clock at sea for the first time, using ...

Most clocks, from wristwatches to the systems that run GPS and the internet, work by tracking regular, repeating motions.