“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...

Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

One MRI scan can now reveal how quickly you're aging. Faster aging links to poor memory, chronic illness, and earlier death.

How have clocks and watches intertwined with our sense of time? When did they come to play central roles in our lives? To answer these questions, On Time from the National Museum of American History ...

Since 2020 (and for reasons that are still unclear), the Earth has been rotating on its axis more quickly than usual, and the ...