The way the world measures time could be heading for a rare and significant overhaul. Advances in precision technology are prompting scientists to reconsider one of the most fundamental units in ...

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

How can we measure time more than 500 million years into the past? A study recently published in Nature Communications by researchers at the University of Lausanne presents a new geological "rock ...

Chinese scientists have engineered a clock so accurate it could lead to a redefinition of the second and an ultraprecise ...

Cosmologists and physicists come up empty handed when they attempt to pin down time. So what, exactly, is it?

The creation of atomic clocks allowed scientists to measure the second independently, based on unchanging features of nature.

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