A theoretical physicist hid his dream of time travel for decades. Now, his time machine theory is forcing scientists to rethink what’s really possible.

Prof Mallett has built a table-top device that illustrates principles he thinks could be used to build a real, working time machine. First, lasers are used to generate a circulating beam of light.

As the narrator says, the laws of physics don’t explicitly forbid time travel, but that doesn’t mean we’ll be building a working time machine anytime soon that can let us whip back and forth ...

Maria Konnikova on the ability of humans to imagine the future and the possibility of time travel, and how it was affected by technology.

Organizations are turning to machine learning because of the return on investment. The ones doing it in real-time are topping the charts.

It’s just a matter of time before we build a time machine that can take us into the far future, scientists say. Here’s what we know so far about the science.

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, ...