Inside the National Institute of Standards and Technology, or NIST, a new atomic clock named NIST-F4 has begun to tick — not with the sound of gears or bells, but with the quantum pulse of cesium ...

Do nonhuman animals live in a kind of eternal present, or are they aware of the passage of time? That question has been ...

I was helping my kindergartener with his school bug project—a task that should have been fun (researching stink bugs! The ...

From sundials to atomic clocks, our understanding of time has become a lot more accurate as technological developments ...