The concept of time feels so natural that we often forget just how peculiar it is. What actually is time? Figuring it out remains one of the trickiest problems in physics. Time governs our everyday ...

Time is relatively well-described in current physical theories – it’s just that those descriptions are perplexingly at odds both with each other and with our perception of what time should be.

The code has been copied to your clipboard. The URL has been copied to your clipboard From VOA Learning English, this is Science in the News. I'm June Simms. Our program today is about a mystery as ...

Could the observable universe be exclusively composed of layered, mutually entangled systems? The passage of time puzzles quantum physicists, who seek to fit it into a cohesive model. One wild theory ...