The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the microwave frequencies of the cesium clocks which are generating the second at ...

Lutetium atomic clock from Singapore's NUS achieves systematic uncertainty of 1 x 10-19, surpassing every prior record by roughly four times and becoming the world's most accurate timekeeper -- ...

In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating clocks and the links connecting them simultaneously across six countries.

Chinese scientists have engineered a clock so accurate it could lead to a redefinition of the second and an ultraprecise global time standard. The new optical clock is so accurate that it loses or ...

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The device, which traps thousands of atoms to keep time, is "pushing the boundaries of what's possible with timekeeping." Reading time 2 minutes New clock just dropped, but it’ll only drop a second ...

Scientists have built the world's most accurate atomic clock - and it's so precise it could redefine the second.