From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth dimension. When you purchase through links on our site, we may earn an ...

Spacetime isn’t something that exists; it’s a model for describing how events happen. Treating events as objects creates philosophical confusion and fuels misconceptions, such as time-travel paradoxes ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Luckily for sci-fi writers, ...

First, the good news. Time travel isn't necessarily forbidden by the laws of physics. In fact, the mathematics underpinning Albert Einstein's theories of relativity offer up possibilities via the ...