EP 1AvailableNow playingFast Food
Cheap, quick and tasty, fast food became a culinary craze in the 1950s. But has our quest for convenience created an irreversible health crisis?


Infographics and archival footage deliver bite-size history lessons on scientific breakthroughs, social movements and world-changing discoveries.
EP 1AvailableNow playingCheap, quick and tasty, fast food became a culinary craze in the 1950s. But has our quest for convenience created an irreversible health crisis?
EP 2AvailableFifteen international agencies spend $62 billion every year on space travel. What's fueling our costly — and dangerous — drive to explore the universe?
EP 3AvailableIn the 21st century, China has become a global economic powerhouse. Why was the rest of the world so slow to notice its rise to the top?
EP 4AvailablePlastics have transformed how we live, but progress comes at a high price: 7.8 billion tons of waste. Are plastics a miracle or a catastrophe?
EP 5AvailableOil has brought great wealth to the Middle East and ignited major wars. Is it a blessing or a curse for the region, as well as the rest of the world?
EP 6AvailableWe share the planet with an estimated 9 million robots, from self-driving cars to surgical arms. Could they one day completely replace humans?
EP 7AvailableFeminism has ushered in sweeping changes to society, securing rights for women around the world. How much further do we have to go?
EP 8AvailableOver 10% of the world's electricity comes from nuclear power. But with radioactive waste and the threat of nuclear meltdown, are we playing with fire?
EP 9AvailableNearly 40 million people are living with HIV. After decades of research and activism, how far have we come in finding a cure and battling the stigma?
EP 10AvailableDNA analysis has given us the tools to map disease, solve crimes and more. But in our rush to decode DNA, are we leaping before we look?

Narrator (voice)