You've probably seen movies where life-threatening events unfold in slow motion. Those moments during a car crash or a fall ...

The laws of physics imply that the passage of time is an illusion. To avoid this conclusion, we might have to rethink the reality of infinitely precise numbers. Strangely, although we feel as if we ...

Einstein’s theories of relativity propose that forward time travel is theoretically feasible by nearing light speeds, but backward time travel presents more challenges. Theoretical models like ...

A pair of scientists from the UK recently published a pre-print research paper discussing the theory of a universe with no beginning. Imagine it: our universe has always existed. The Big Bang either ...

Time travel movies have different rules about what happens when you start messing around with the timeline. If you’ve ever wondered which ones make the most sense, we may now have an answer. According ...

The energy requirements for manipulating spacetime on a scale necessary for time travel are astronomical. Time travel remains a tantalising concept, captivating the human imagination and stirring ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

Using the world’s most powerful X-ray laser, scientists have filmed atoms performing an eternal quantum dance that never ...