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

The new clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, ...

The European Space Agency’s ACES mission could ultimately pave the way for a global network of atomic clocks that make these ...

The National Institute of Standards and Technology (NIST) has dramatically enhanced the precision of time measurement with ...

From space, the Atomic Clock Ensemble in Space will link to some of the most accurate clocks on Earth to create a ...

At the heart of this change is a new kind of atomic clock that ... the second based on optical clocks. For now, that still depends on microwave transitions in caesium atoms, but this might change ...

The National Institute of Standards and Technology's new cesium fountain clock is one of the most precise atomic clocks ever created.

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 ...

The package includes two extremely accurate atomic clocks – a caesium fountain clock and a hydrogen maser clock – both of which use the vibration frequency of atoms as a kind of 'pendulum' to ...