A trip through time has always sparked curiosity. The idea that you could step into a machine and emerge in the past or future has captured human imagination for generations. While science fiction ...

Cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed from a high-energy to low-energy environment—the Big Bang. Today, scientists believe cosmic ...

Time travel has long been a staple of science fiction, captivating imaginations with the possibility of moving through time as easily as we travel through space. However, the question remains: how ...

This month marks 40 years since Michael J. Fox, as Marty McFly, jumped into a souped-up DeLorean and went back in time, putting his very future existence at risk. (SOUNDBITE OF FILM, "BACK TO THE ...