The size, power, and other metrics of a latest-generation chip-scale atomic clock.

ESA's Atomic Clock Ensemble in Space (ACES) has arrived at NASA's Kennedy Space Center in Florida, United States. This ...

A revolutionary timekeeping breakthrough could be on the horizon as scientists explore the thorium-229 nuclear optical clock, ...

Prague feels like something out of a storybook. With its romantic stone bridges, lush riverside gardens, hundreds of historic spires punctuating the skyline, perfectly-preserved architecture ...

Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST’s Colorado , the clock will automatically set to the correct time. Automatically adjusts to Daylight ...

A technological innovation could revolutionize the precision of navigation systems. A tiny device, shaped like a comb, ...

Time and frequency are the most precisely measurable physical quantities. Currently, atomic clocks, especially atomic optical clocks, set the standard for accuracy. However, the 229 Th nuclear ...

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like strontium or aluminum—have reached staggering levels of accuracy ...

Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...

En-route to nuclear clocks, researchers have found a resonant mode in thorium atom nuclei with a low temperature coefficient – nuclear oscillators are mooted initially as replacements for atomic ...