In 1992, something unprecedented happened in Los Angeles: rival gang members negotiated a historic peace treaty, significantly reducing violence across the city. Aqeela Sherrills, one of the key negotiators of that treaty, continues to...

How To Detect A Secret Nuclear Test

To transition to clean energy and green technology like electric cars, the world needs massive amounts of essential minerals. Environmental peacemaker Saleem Ali explains the conflicts already arising between countries rushing to mine...

How To Detect A Secret Nuclear Test

Between 1927 and 1941, workers blasted 450,000 tons of rock from a mountainside using chisels, jackhammers, and dynamite. Gradually, they carved out Mount Rushmore. Today, the monument draws nearly 3 million people to South Dakota's...

In which John Green teaches you about the War of 1812. The War of 1812 was fought between the United States and its former colonial overlord England. It started in, you guessed it 1812. The war lasted until 1815, and it resolved very...

Lots of global problems seem intractable, but there’s a formula for success that we can follow.

Several companies are already working on plans to mine space objects, but who owns what in space?

We will get out of this pandemic, says Maria Van Kerkhove, the COVID-19 Technical Lead of the World Health Organization (WHO). The question is how fast -- and if we'll take what we've learned from the past two years and apply it to the...

In which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic...

Andrew Jackson was both beloved and loathed during his presidency. In this imaginary courtroom, you get to be the jury, considering and weighing Jackson's part in the spoils system, economic depression, and the Indian Removal Act, as...

In the 1600s, an expansive autonomous settlement called Palmares reached its height in Brazil. It was founded and led by people escaping from slavery, also called maroons. It was one of the world's largest maroon communities, its...

Tobacco causes more than seven million deaths every year -- and many of us are far more complicit in the problem than we realize. In a bold talk, oncologist Dr. Bronwyn King tells the story of how she uncovered the deep ties between the...

This week Craig continues our conversation on presidential powers by looking at those NOT found in the Constitution - implied or inherent powers. We’ll talk about how the president uses his or her power to negotiate executive agreements,...

Hank acknowledges the amazing feat performed by Felix Baumgartner and answers many of your questions about why it is so amazing.

This week, Stan Muller teaches you how intellectual property law functions internationally. Like, between countries. Well, guess what. There's kind of no such thing as international law. But we can talk about treaties. There are a bevy...

New ReviewVisit Yorktown, Virginia to see the decisive battle of the American Revolution

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A video titled "A Flawed Peace" is about Europe after World War I and its instability.

Howcast - Go to the solarian outpost on Sur'Kesh in this walkthrough of Bioware's new release, Mass Effect 3.

Howcast - Learn if marijuana is legal in Amsterdam or anywhere else outside the United States in this Howcast video.

Howcast - Learn how to say the days of the week in Greek with this Howcast video.

In 2016, the UK voted to leave the European Union, a decision called Brexit, which shocked the world and caused political and economic upheaval. Many people supported the exit because of concerns over immigration, national identity, and...

Learn the story of the Trail of Tears, a tragic chapter in American history when thousands of Native Americans were forced to leave their homelands. This clear and simple video explains how the U.S. government passed the Indian Removal...