Every clock in your house probably tells a slightly different time. Now picture those clocks as the most precise instruments humanity has ever built, so accurate that they wouldn't lose or gain a ...

In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating ...

A research team led by Prof. Chang Hong from the National Time Service Center (NTSC) of the Chinese Academy of Sciences (CAS) ...

These days, quantum effects are frequently employed for incredibly accurate measurements. However, what is the precise limit ...

Los Angeles Mayor Karen Bass emphasized at a press conference that the unrest has been limited to a few downtown blocks.