Follow the space program since the moon landing in the four-part documentary "Once Upon a Time in Space". Here’s how to watch ...

Physicists from Imperial College London have achieved a groundbreaking milestone in quantum physics by reimagining the ...

Time crystals exhibit perpetual motion-like behavior when separated from external energy input, but scientists found a way to ...

Atomic clocks record time using microwaves to measure the frequency of quantum vibrations of electrons. They are the basis upon which a second is defined. But there’s a new kid on the block, the ...

The Lisska Center for Intellectual Engagement will host a roundtable discussion on time travel at 4:30 p.m. Nov. 5.

Time, not space plus time, might be the single fundamental property in which all physical phenomena occur, according to a new theory by a University of Alaska Fairbanks scientist. The theory also ...

The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one physicist says he has resolved them. When you purchase through links on our site, ...