Thanks to the finite speed of light, we're looking into the past every time we look into the night sky and some of the objects we're looking at might not even exist anymore.

Our computers, tablets, and phones have gotten very fast, but can we make them even faster using quantum computers?

In this episode, we find out where new stars come from by looking at the Orion Nebula.

Betelgeuse is 12 times more massive than the Sun, but when it comes to stars, the more massive you are, the faster and harder you die.

Let's take a deep look into the physics of radio.

The speed of light is the speed limit for the universe. While nothing with mass can meet or exceed that limit, Einstein's Theory of Special Relativity tells us some of the strange things that happen when matter approaches the speed of light.

The gravitational force holds our galaxy, our Solar System, and even our planet together, yet it's very weak compared to the other three fundamental forces.

If you spent some time traveling on a space ship near the speed of light and then returned to Earth, you would find everyone on Earth had aged more than you.

Earth is always moving through the Solar System and the Solar System is always moving through the galaxy. Just how fast are moving through space?

Just about everyone in the Northern Hemisphere knows about the North Star, but has it always been the North Star?