Timekeeping in the United States, which was already a pretty precise science involving lasers and atomic particles, just got even more exact. A new atomic clock, so accurate it will lose or gain only ...

After the introduction of a new kind of atomic clock, the world’s most expert timekeepers are considering making an update to how we measure a simple second. It would be more accurate, sure. But it ...

Scientists have created an atomic clock that is so precise that it can detect tiny changes in the speed of its ticks depending on whether it is 2 centimeters closer or farther from the center of Earth ...

Scientists have created an atomic clock so precise that it won’t lose or gain a single second in 15 billion years -- roughly the age of our universe. But the clock isn’t just steady, it’s also ...

Happy birthday, caesium clock. Now move over. As the atomic clock used to define time itself turns 60, tests are set to begin on a new generation of clocks that are designed to give the caesium ...

The new optical lattice clocks, which look set to replace atomic clocks as the official measurement of really, really accurate time You can save this article by registering for free here. Or sign-in ...

Travellers have relied on accurate timekeeping for navigation since the development of the marine chronometer in the eighteenth century. Galileo, Europe’s twenty-first century navigation system, also ...

As if timekeeping in the U.S. wasn’t already pretty accurate, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) just declared a new atomic clock, the NIST-F2, to ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. BOULDER, Colo. — Timekeeping in the United ...

Travellers have relied on accurate timekeeping for navigation since the development of the marine chronometer in the eighteenth century. Galileo, Europe's twenty-first century navigation system, also ...