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In physics, they are all the same thing. But to you, me, and everyone else, time moves in one direction: from expectation, through experience, and into memory. This linearity is called the arrow of ...

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.

Time is all around us: in the language we use, in the memories we revisit and in our predictions of the future. But what exactly is it? The physicist and Nobel laureate Frank Wilczek joins Steve ...

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 ...