A theoretical particle that travels faster than light, the tachyon has long intrigued physicists and fueled decades of ...

In a peer-reviewed paper, a scientist says he has mathematically proven the physical feasibility of a specific kind of time travel. The paper appears in Classical and Quantum Gravity. Germain ...

Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed ...

One of the most famous paradoxes ever, the grandfather paradox, cautions against making changes that could break the timeline if you were to ever travel back in time. But, according to one scientist, ...

What is time? Is time travel possible? For centuries, these questions have intrigued mystics, philosophers, and scientists. Much of ancient Greek philosophy was concerned with understanding the ...

Vanderbilt University physicist Lorenzo Gavassino isn't so sure this is as big an obstacle as time-traveler pessimists have ...

A peer-reviewed study confirms the mathematical feasibility of time travel using closed time-like ... s quake surge 'A million-year mistake': Scientists just found a ‘lost’ human relative ...

The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one physicist says he has resolved them.

Scientists "cannot time travel, but this data is allowing us to time travel and see what's happening 50,000 years ago in our history," Priya Moorjani, a senior author of the Science study and UC ...

From Back to the Future to Tenet and Interstellar, cinema has portrayed time travel in many imaginative ... We'll also keep you up to date with New Scientist events and special offers.