For many years, cesium atomic clocks have been reliably keeping time around the world. But the future belongs to even more ...

A clock built by a team led by researchers at the National Institute of Standards and Technology (NIST) has been estimated to be 41 percent more accurate than the previous timekeeping record holder.

Improvements in clocks are setting the stage for a redefinition of the second. This is an Inside Science story. (Inside Science) -- Earlier this year, in a nondescript lab at the National Institute of ...

Scientists from MIT have developed what they believe is the most accurate atomic clock ever constructed. The clock, which utilizes quantum entanglement of atoms and a different element than most ...

Physicists in Germany have built the world's most accurate atomic clock. A team from the Physikalisch-Technische Bundesanstalt created a clock that works by measuring the vibration of ytterbium ions ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

An experimental atomic clock based on a single mercury atom is now at least five times more precise than the national standard clock based on a “fountain” of cesium atoms, according to a paper by ...

Physicists at the University of Oxford in the UK have conducted an experiment that suggests the more accurately clocks tick, the more disorder, or entropy, occurs in the universe. The second law of ...

PORTLAND, Ore. — A strontium-based timekeeper providing up to 50 percent better accuracy could serve as the next-generation atomic clock. By controlling collisions between neutral strontium atoms, the ...

A new experiment shows that the more energy consumed by a clock, the more accurate its timekeeping. This is the first time that a measurement has been made of the entropy -- or heat loss -- generated ...