Ron Mallett, a physicist and professor emeritus at the University of Connecticut, was just 10 years old when he lost his father to a sudden heart attack. This traumatic experience, along with ...

Space -- the final frontier. These are the words that introduce every episode of classic "Star Trek," the show that ...

Endgame" speaks about the elements of the movie's time-travel plot line that are supported by science.

One of the most famous paradoxes ever, the grandfather paradox, cautions against making changes that could break the timeline if you were to ever travel back in time. But, according to one scientist, ...

Meanwhile, your entire existence (and the existence of any object) can be plotted on what’s called a world line, a curving path through spacetime starting at your birth and ending at your death. A ...

During our second Ars Live event earlier this month, screenwriter/producer Ed Solomon (Bill & Ted franchise) joined physicists Sean Carroll (Johns Hopkins University) and Jim Kakalios (University of ...

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 ...

Researchers find that a photon can spend a negative amount of time in an excited atomic state while passing through a cloud of atoms ...

It’s not just in your head — time can actually flip. Physicists in New York have pulled off what sounds like a page ripped from a sci-fi script: They’ve confirmed that “time mirrors,” a trippy ...

Can we journey through time? Sci-fi author Dete Meserve presents a compelling case for our future in the past. Can we journey through time? From H.G. Wells' "The Time Machine to The Time Traveler's ...