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

Last week, we touched upon E=mc2, and how Einstein’s theory of relativity turned the world of physics upside-down. Now, we’re using that theory to show why the very concept of time may not be what you ...

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

Time is a fickle thing. Depending on your frame of reference, it can appear to pass slower or quicker, thanks to a wonky phenomenon known as time dilation that was described in Albert Einstein’s ...

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.

Time really does move faster on Mars, but the breakthrough that confirms it did not come from a spacecraft’s stopwatch.

I am so intimidated right now...I think I understand less about relativity now than before I asked the question. I think - if I understand things as written - that time can be observed to slow for an ...