Time travel has long been a subject of fascination in science fiction, but recent scientific endeavors suggest that it might not be as far-fetched as once thought. Researchers in laboratories around ...

Recent scientific breakthroughs are making concepts once confined to science fiction, like time travel, seem tantalizingly ...

Circuit diagrams for (a) standard and (b) PCTC-powered weak-value amplification. Time progresses in the laboratory’s rest frame as one proceeds upward along the central, vertical axis. Black lines ...

In a makeshift lab, a trio of brainiac students argue over their time-travel device. The skeptic on the team has her doubts—not that the invention will work, but whether they should be mucking around ...

Most people see time as a one-directional arrow in the universe's symphony. But the world of theoretical quantum physicists is one in which the direction of time is far more flexible. These experts ...

Hawking once said, "I have experimental evidence that time travel is not possible," and recounted his unusual test — which involved throwing a party on Jun 28, 2009. But Hawking didn't send out ...

A real mind-melter: Quantum mechanics is strange, but even for a field of science that regularly defies our conventional understanding of reality, the latest discovery is particularly baffling.