Here’s a riddle for you: A plane flew for five days and nights, staying airborne for 118 hours. But it didn’t use a single drop of fuel. How? Bertrand Piccard explains.


Daniel Kish has been blind since he was 13 months old. He navigates the world using echolocation, sending out flashes of sound that bounce off objects and back to let him construct an understanding of the space around him. He let Kate Torgovnick May tag along as he got ready for TED.

From a distance, "Letter to Peter Parker" may seem relatively simple. But when you get up close, things get interesting. "The text repeats over and over and essentially thanks Peter Parker for all the reasons I used to relate to him as a kid," says Hetain Patel. "He helped make me who I am today.”

Take a closer look at a new sculpture by artist Hetain Patel which involves a fiberglass Spider-Man suit and a very fervent thank you letter.

Comfort food in space: the final frontier | ideas.ted.com | Illustration by John Holcroft.

The past, present and future of food in space — from astronaut ice cream to “Enchilasagna” on Mars.

Sebastian Junger's last patrol. | Photo: Guillermo Cervera/HBO | ideas.ted.com

Veterans often have a hard time returning to civilian life after war. Sebastian Junger offers a counterintuitive theory about why

Neil Gaiman writes stunningly original stories that can make the skin crawl and the teeth chatter. But his latest work might sound familiar: it’s an adaptation of the Brothers Grimm breadcrumb dropper, Hansel & Gretel.

When Giles Duley arrived in Lebanon to photograph Syrian refugees who’d fled there, he saw something that he wasn’t expecting. He saw himself.