Warp drives have long lived in the realm of science fiction, but the underlying physics that inspired them is very real and ...

Our curiosity about time travel is thousands of years old. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Time travel makes regular appearances ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Time travel has long lived in the realm of science fiction, but a growing body of physics research now argues that journeys into the past might fit inside known laws of nature without tearing ...

In the moments before the Big Bang, our universe was a hot, dense, and extremely high-energy place. That all changed when the universe exploded 13.8 billion years ago. Rapid inflation divided a single ...

In the movies, time travelers typically step inside a machine and—poof—disappear. They then reappear instantaneously among cowboys, knights or dinosaurs. What these films show is basically time ...

A common theme in science-fiction media, time travel is captivating. It’s defined by the late philosopher David Lewis in his essay “The Paradoxes of Time Travel” as “[involving] a discrepancy between ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Moskowitz: We’re going to have a little friendly debate. Billings: Really? I came for a throwdown. Moskowitz: Well, a wrangle. A parley. A confab. Lee, what do you have against time travel? Billings: ...