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

Over the short span of just 300 years, since the invention of modern physics, we have gained a deeper understanding of how our universe works on both small and large scales. Yet, physics is still very ...

Physicists are rethinking time itself. Long treated as a basic part of the universe, time may instead be an illusion—a side effect of quantum entanglement. A new study challenges the traditional idea ...

Physicists have struggled to understand the nature of time since the field began. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Time may not be ...

A causal loop is a classic time travel conundrum. If you send information to the past – say, you give Albert Einstein the formula E=mc ² before he theorises it himself, then he publishes it and you go ...

Natalia Ares receives relevant funding from the Royal Society, EPSRC, the Foundational Questions Institute Fund, a donor advised fund of Silicon Valley Community Foundation, and from the European ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. You’re probably quite familiar with the basic states of matter ...

For most of us, time feels like one of life’s biggest certainties. We wake up, go about our day, watch the clock move forward, and assume time is ticking away in a steady, reliable flow from past to ...

Sara Imari Walker receives funding from the National Aeronautics and Space Administration and the John Templeton Foundation relevant to the work in this article. She is also a member of the External ...