Every single interaction in the universe can be boiled down to one of four fundamental forces: the gravitational force, the electromagnetic force, the strong nuclear force, and the weak nuclear force.

Sometimes light behaves like a wave. Sometimes it behaves like a particle. Let's take a deep look into the very nature of light.

There are over 3,500 planets outside of our known solar system and we're always finding more. But the star Trappist 1 is particularly exciting because there are seven confirmed earth-sized planets in its orbit, all with the potential for liquid water.

How many satellites have humans put into orbit and how many of them are operational? What exactly are those satellites doing above us and which country has the most satellites in orbit?

How does a nuclear reactor work and how is the process different than what goes on inside a star?

How long would it take to fly to Mars? How about Pluto? What is the fastest our ships and probes can travel and how far have our probes made it in the Solar System?

What would it take to colonize Mars, the Moon, or even set up a permanent, self-sustaining vessel in low-Earth orbit?

Because of Faraday's experiments, we now have electric motors, generators, transformers, and basically the foundation for all modern electronics.

The ISS is a little larger than a football field and has been orbiting Earth since 1988. What purpose does it serve and what has it taught us about living in space?

Delve into the history of the dwarf planet Pluto, including the New Horizons flyby in 2015 and that controversial designation of "dwarf planet."