Browse Lessons

The problem with online charter schools

Why danger symbols can’t last forever

Why Puerto Rico is not a US state

The awkward debate around Trump's mental fitness

How this young prince seized power in Saudi Arabia

It's not you. Commuting is bad for your health.

How red squirrel pelts shaped our monetary systems [Advertiser content from Zelle]

How faster computers gave us Meltdown and Spectre

How audiobooks are recorded

How rats take advantage of human failure

The chocolate science hype machine

The new US tax law, explained with cereal

How the US failed to rebuild Afghanistan

The real reason Amelia Earhart is so famous

Here's how Trump's nuclear "button" actually works...

Iran's massive protests, explained in 4 minutes

Why the market for skin whitening is growing

Takeout creates a lot of trash. It doesn't have to.

N.E.R.D.'s hit song "Lemon" owes a lot to New Orleans bounce

2017, in 7 minutes

How this military explosive is poisoning American soil

Filthy Frank fans made us do this

How Trump makes extreme things look normal

Where babies in movies come from

How smart is today's artificial intelligence?

A teenager's journey through weight loss surgery

How the end of net neutrality could change the internet

Star Wars’ infamous Holiday Special, explained

Why this elbow is a TIME person of the year

The diet that helps fight climate change

These factory workers get paid to go to school

NASA's plan to save Earth from a giant asteroid

The US medical system is still haunted by slavery

How J Dilla humanized his MPC3000

Europe’s most fortified border is in Africa

The fight to make bad jobs better

How Technicolor changed movies

The real reason American health care is so expensive

Why cities are full of uncomfortable benches

Building a border at 4,600 meters

The robot-proof job men aren't taking

Road signs suck. What if we got rid of them all?

9 charts to be thankful for: humanity is getting better

How Trump turned Sean Hannity into a conspiracy theorist

How the US outsourced border security to Mexico

How job surveillance is changing trucking in America

The military coup in Zimbabwe, explained

The environmental cost of free two-day shipping