Scientists developed a highly accurate optical ion clock, improving time measurement precision by 1,000 times.

Each year for the past 78 years, the Bulletin of the Atomic Scientists has published a new Doomsday Clock, suggesting just ...

In an optical atomic clock, atoms are irradiated with laser light. If the laser has exactly the right frequency, the atoms change their quantum mechanical state. All external influences on the atoms ...

The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the ...