On one hand, the speed of light is just a number: 299,792,458 meters per second. And on the other, it’s one of the most important constants that appears in nature and defines the relationship of ...

Ok, it's been almost a decade since I've had to study Maxwell's equations, but I remember a certain facet from those equations that always astounded me. It was the fact that the speed of light could ...

Everyone knows the number for the speed of light — but almost nobody knows the uncomfortable truth behind it. Measuring light ...

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 ...

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?

The following is an extract from our Lost in Space-Time newsletter. Each month, we dive into fascinating ideas from around the universe. You can sign up for Lost in Space-Time here. If you’ve taken a ...

The principle of relativity, as initially described by Galileo, posits that the laws of physics remain consistent regardless of an observer's relative motion. Einstein's special relativity ...

A nuclear engineer responds to the discussion around measuring the speed of light, examining the science, assumptions, and misconceptions behind the topic. The reaction breaks down complex physics ...

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 ...