Physicists are getting closer to creating a long-sought ‘nuclear clock’. This device would keep time by measuring energy ...

Scientists are exploring a new type of optical atomic clock based on ytterbium-173 ions that could help define the future standard for measuring time.

The way the world measures time could be heading for a rare and significant overhaul. Advances in precision technology are ...

This is the third time that the clock has been moved closer to midnight in the past five years. “Every second counts, and we ...

This breakthrough in precision timing is about the size of your fingernail and only loses one second every 30,000 years.

Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by electrons transitioning between energy levels ...

Add Yahoo as a preferred source to see more of our stories on Google. Jon Wolfsthal, director of global risk at the Federation of American Scientists (FAS), Asha George, executive director of the ...

To find out how clock accuracy is verified and which reference is used for comparison, we visited the Belarusian State Institute of Metrology (BelGIM), where most of the national standards are kept.

In our everyday lives, time is a precious commodity. We can gain or lose it. We can save, spend or waste it. If our crimes are revealed, we risk having to do time. To scientists, time is something we ...