Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay Have you ever dreamed of traveling through time, like characters do in ...

It's fun exploring Street View Time Machine! Some streets in fast growing cities are like a century of progress in 20 years. Here's Toronto, 591 Dundas E, facing north, same angle ("See more dates" to ...

Google Earth has just turned 20 years old, and the company is giving users some new features. Firstly, the company is bringing over the Historical Imagery feature that was first introduced with Google ...

Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that describe gravity, quantum fields and the structure of spacetime now allow ...

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 ...