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 ...

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.

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

The entire Ultimate Universe is centered around time travel, meaning the future is always in flux. If the Maker wins in one potential future, there are countless others where he loses, and it’s ...

Will We Ever Be Able to Time Travel Into the Past? We might experience the effects of classical physics most prominently in our day-to-day lives, but we live in a quantum universe, and quantum ...

A peer-reviewed study confirms the mathematical feasibility of time travel using closed time-like curves (CTCs), as posited by Einstein. Tobar compares the outcomes to the monkey’s paw—actions ...

The James Webb Space Telescope (JWST) has just spotted what might be some of the oldest galaxies ever to exist—basically, ...

The project’s immense space-time coverage shows scientists how the telescopes will help them explore some of the biggest cosmic mysteries. They will be able to study how dark energy (the mysterious ...