In Albert Einstein’s Special Theory of Relativity, the concept of “time dilation” illustrates that the flow of time is ...

When an object moves extremely fast—close to the speed of light—certain basic assumptions that we take for granted no longer apply. This is the central consequence of Albert Einstein's special theory ...

A new study suggests that time itself could exist in a quantum superposition, ticking faster and slower simultaneously, and that this effect may soon be tested in the lab. Led by Igor Pikovski at ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Albert Einstein's theory of general relativity—which explains gravity as the product of the distortion of space and ...

What if the technology you use every day depends on a subtle distortion of time itself? The answer lies in a century-old idea ...

Is there a time of day or night at which nature's heaviest elementary particle stops obeying Einstein's rules? The answer to that question, as bizarre as it seems, could tell scientists something very ...

Long and winding road: The Juice space probe taking the long way to Jupiter and its moons - Copyright NASA/AFP/File NASA Long and winding road: The Juice space probe ...

Tiny “Ferris wheels” made from light and extremely cold particles could allow researchers to test a facet of Albert Einstein’s theory of relativity on unprecedentedly small scales. Theories of special ...