An atomic strontium clock ticks 430 trillion times per second, tracking time with precision over billions of years and ...

Who doesn’t love a good math holiday? Most people know about Pi Day (3/14), but there are even rarer days on the calendar ...

Physicists have created a visible, self-sustaining “time crystal” using swirling liquid crystals that move in endlessly repeating patterns when illuminated. Imagine a clock that runs forever without ...