Time Machine is Apple's backup system that automatically saves your Mac's files. Here's how to use the macOS file protection feature.

Time travel has been a popular science-fiction theme since H. G. Wells wrote his celebrated novel The Time Machine in 1895. But can it really be done? Is it possible to build a machine that would ...

Tipler published a paper on how to build a time machine, a Tipler Cylinder, back in 1974. This machine would enable you to travel back in time.

According to Stephen Hawking, building a time machine isn't hard: "All you need is a wormhole, the Large Hadron Collider or a rocket that goes really, ...

Two men pursue childhood fantasies in very different ways in Jay Cheel's documentary 'How to Build a Time Machine.' By THR Staff Less an evaluation of a sci-fi trope’s feasibility than a nerd ...