Space — the final frontier. These are the words that introduce every episode of classic "Star Trek," the show that essentially popularized the concept of traveling the stars at the speed of light – or ...

The universe has a speed limit, and it's the speed of light. Nothing can travel faster than light — not even our best spacecraft — according to the laws of physics. So, what is the speed of light?

If the speed of light were much slower, a lot of very odd effects, from redshift to time dilation, would be a lot more ...

The speed of light is one of science’s most trusted constants, a value woven into modern physics so deeply that questioning ...

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 ...