Because the moon has less gravity than Earth does, time passes slightly differently there. This effect was first predicted by ...

The way in which time progresses on the Moon is becoming increasingly relevant as both countries push toward their next lunar ...

Time is often treated as constant, but Einstein showed that it isn’t. Speed and gravity both affect how fast time moves, and ...

Tracking time is one of those things that seems easy, until you really start to get into the details of what time actually is. We define a second as 9,192,631,770 oscillations of a cesium atom.

Did you know that moving a clock one inch toward the ground would result in a slower tick compared to the same clock positioned higher up? Gravity doesn't just pull things; it also bends time.

The answer comes from a counterintuitive result of special relativity, a field of physics which is notoriously difficult to ...