In which John Green teaches you about capitalism and socialism in a way that is sure to please commenters from both sides of the debate. Learn how capitalism arose from the industrial revolution, and then gave rise to socialism. Learn...

In which John compares and contrasts Greek civilization and the Persian Empire. Of course we're glad that Greek civilization spawned modern western civilization, right? Maybe not. From Socrates and Plato to Darius and Xerxes, John...

Historically speaking, there is no one scientific method. There's more than one way to make knowledge. In this episode we're going to look at a few of those ways and how they became more of the "norm."

The Silk Road and Ancient Trade: In which John Green teaches you about the so-called Silk Road, a network of trade routes where goods such as ivory, silver, iron, wine, and yes, silk were exchanged across the ancient world, from China to...

In which John introduces you to quite a lot of Chinese history by

discussing the complicated relationship between the Confucian sch
olars
who wrote Chinese history and the emperors (and empress) wh
o made it.
Included is...

In which John Green explores how Spain went from being a middling European power to one of the most powerful empires on Earth, thanks to their plunder of the New World in the 16th and 17th centuries. Learn how Spain managed to destroy...

In which John Green finally gets around to talking about some women's history. In the 19th Century, the United States was changing rapidly, as we noted in the recent Market Revolution and Reform Movements episodes. Things were also in a...

John Green teaches you about the so-called Dark Ages, which it turns out weren't as uniformly dark as you may have been led to believe. While Europe was indeed having some issues, many other parts of the world were thriving and...

In order to understand the history of media literacy we have to go all the way back to straight up literacy. In the first half of our look at the history of media literacy, Jay takes us all the way back to Ancient Greece and forward...

New ReviewFrom an ancient sound illusion to a symbol of unity, researchers have proposed dozens of theories for why the mysterious megaliths were erected at Stonehenge 5,000 years ago.

New ReviewWhile strangely cute, these tiny animals are almost indestructible and can even survive in outer space.

New ReviewMeet the binturong, a mysterious rainforest mammal that is neither bear nor cat yet is called the bearcat. What makes it truly unique is that it smells like buttered popcorn!

New ReviewThe Bermuda Triangle has been linked to a number of mysterious disappearances dating back to 1945. Could something sinister be causing this, or is it simply explained by science?

If you're lost in the woods, your best chance of finding your way might be a tiny magnet.

On March 1, 2016, NASA astronaut Scott Kelly came back to Earth after spending almost an entire year at the International Space Station, breaking the record for the longest spaceflight by an American. He and his Russian crewmate Mikhail...

On February 28, 1959, the U.S. Air Force launched a new spy satellite prototype called Discoverer 1. This was the first satellite that NASA launched toward the south pole in an attempt to put it in a polar orbit. But the mission didn't...

Sunspot AR4366 has been very active with several flares recorded, the biggest of them being an X8.3-class solar flare. NOAA's GOES-17 satellite captured the fireworks. Credit: Space.com | footage courtesy: CIRA/NOAA

Explore some of the planet’s most extraordinary islands — from Bishop Rock, the world’s smallest island with a building that once housed lighthouse keepers, to the cat-filled paradise of Tashirojima, where furry friends outnumber people.

Incredible Experiment: Tennis Balls in a Wheel!

On February 21, 1931, Germany launched its first liquid-fueled rocket … sort of. The rocket only made it about ten feet off the ground. To be fair, the rocket itself was only two feet tall, so it did achieve an altitude of about five...

On February 7, 1984, NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether. McCandless was wearing a type of jetpack known as the Manned Maneuvering Unit, or MMU. The MMU fit over a regular EMU...

On February 1, 2003, the space shuttle Columbia fell apart as it returned to Earth after spending more than two weeks in space. The accident instantly killed all seven astronauts on board. This was the second fatal accident of the space...

A supermoon will light up the night skies, also, the Draconid and Orionid meteor shower peak during the month. Credit: NASA/JPL-Caltech

This video introduces and practices Near Doubles facts. Using what we know about doubles helps us solve facts that are near doubles facts. This is perfect for kindergarten, 1st grade, 2nd grade, and early learners, this video covers...