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 ...

A recent study claims to have calculated a potential method of time travel. It involves a highly theoretical object called a “ring wormhole,” which is a type of wormhole that connects two regions of ...

Add Yahoo as a preferred source to see more of our stories on Google. Luckily for sci-fi writers, there's rarely any need to worry about backing up their ideas with facts. Over the years, they've come ...