In this episode of Stuff You Should Know, amateur astrophysicists Josh and Chuck break out the stats and attempt to explain the complex, boiling ball of gas that we call the sun.

In this episode, Josh and Chuck discuss the most famous fortified structure in the world -- the castle. Tune in to learn all about castles, from murder holes to modern fortresses.

You know those trails that jets leave in the sky? While science has explained why they happen, plenty of conspiracy theorists believe there’s more to it. Join Josh and Chuck as they channel the guys from Stuff They Don’t Want You to Know in this episode.

Can a human being be scared to the point of sudden death? Listen in as Chuck and Josh explore the physiological possibilities behind dying of fright in this podcast from HowStuffWorks.com.

In this spooky episode of Stuff You Should Know, Josh and Chuck get you ready for Halloween as they narrate H.P. Lovecraft's creepy tale "The Tomb." Tune in to learn more...if you dare!

Microexpressions are brief facial cues that reveal a person's true intentions. Listen in as Chuck and Josh discuss the subtle art of reading faces in this podcast from HowStuffWorks.com.

There are lots of conspiracy theories about Freemasons, but how much do you really know about this secretive order? In this episode, Josh and Chuck take a comprehensive look at the origins, history, practices, beliefs and famous figures of Freemasonry.

Who first decided that it would be a great idea to shoot flame at other people from a distance? Josh and Chuck talk about the (very) early origins, history and technology of the flamethrower in this episode.

There's no denying that diamonds are pretty -- but where do they come from, and why are they so expensive? Join Chuck and Josh as they explore everything about diamonds, from their formation to the mining process and the history of the DeBeers cartel.

The Samurai were legendary Japanese swordsmen and warriors, known for their loyalty and adherence to a strict code of honor. Josh and Chuck tackle the Samurai in this episode.