Scientists Think Time Travel Is Possible—If We Could Move at Warp Speed

Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

Do Time Loops Really Exist, and Can You Get Stuck in One?

Under normal circumstances, your light cone (and thus your world line) remains fixedly pointed toward the future. However, we ...
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13 faster-than-light travel methods from sci-fi that leave Einstein's theory of relativity in their space dust

When it comes to space travel, Albert Einstein's theory of relativity is a major inconvenience. With the laws of physics (currently) prohibiting faster-than-light travel, velocities are limited to a ...
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Wild Astronomical Discovery Confirms Einstein Was Right About Time Itself

Time dilation: It’s a staple of science fiction, and whether you’re familiar with the term or not, you’ve probably encountered it in print or film. Fly fast enough to the speed of light, and your ...

‘I wanted to see my dad again’: Is time travel possible?

Marty McFly went Back to the Future but what do scientists think about time travel in the real world? Is it possible? And ...