Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

Einstein’s famous tenet of special relativity — that time slows down on a moving clock — has been verified 10 times more precisely than ever before. The result comes from physicists in Germany and ...

Even if it turns out that time loops never take shape, studying them provides key insights into the deepest rules of reality.

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Time feels like the most familiar thing in the world, yet it hides one of physics’ hardest questions: why do we only remember ...

Yesterday, I wrote about the core concepts needed to understand quantum physics, which is one of the two pillars of modern physics. The other, of course, is the theory of relativity, the full and ...

Denizens of Elizabethan England dismissed a short-lived sensation as a “nine days’ wonder.” Andy Warhol spoke of fame lasting mere 15 minutes. These days, a reality-TV star would be lucky to light up ...

Is it time to begin to review Einstein’s relativity theory? originally appeared on Quora: the knowledge sharing network where compelling questions are answered by people with unique insights. Answer ...

In his 1986 book, Was Einstein Right? Prof. Clifford Will, physics, Washington University in St. Louis, declared anyone who questioned Albert Einstein’s special theory of relativity to be a crank or ...