Physicists have now seen waves “bounce” off a sudden change in time itself—a twist that flips their direction and shifts ...

Time’s passage is non-negotiable. Its flow marks the progress of our lives, moving clearly in one direction. It is, by nature, asymmetrical. In this way, we perceive it to move like an arrow, ...

Imagine two people walking side by side - one of them might already know the future of an alien civilization. The Andromeda ...

Atomic clocks record time using microwaves at a frequency matched to electron transitions in certain atoms. They are the basis upon which a second is defined. But there is a new kid on the block, the ...

In Interstellar, humanity’s fate intertwines with a father’s love, black holes, and the mysteries of space, crafting an ...

Time, not space plus time, might be the single fundamental property in which all physical phenomena occur, according to a new theory by a University of Alaska Fairbanks scientist. The theory also ...