Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world ...
Nuclear weapons, climate change and biological threats are the biggest concerns.
Researchers at the UK’s National Physical Laboratory (NPL) have created a tiny atomic fountain ...
There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and Technology (NIST) have improved their atomic clock based on a trapped ...