At the quantum level, the past and the future are indiscernible. That could have profound effects on the world we can see.

A Senate committee heard from several experts Thursday on setting a year-round time standard instead of switching back and forth with daylight saving time. President Trump recently called it a "50/50 ...

That’s relativity.” It’s pithy, and not really all that accurate, but it does get across an important truth: that time, or at least our perception of it, is more fluid than we often assume.