An Accidental Case of the Blues

For centuries, the Northwest Passage, the long-sought sea route connecting the Atlantic and Pacific Oceans through northern Canada, was a holy grail of Arctic exploration. Even now, sailing through it isn’t guaranteed. Mark Synnott, a National Geographic Explorer, writer, and adv ...  Show more

There’s a lost continent waiting to be explored, and it’s right below our feet. We’ll dig into the deep human relationship to the underground—and why we understand it from an instinctive point of view, but not so much from a physical one. (Hint: We’re afraid of the dark.) In an e ...  Show more

Once in a blue moon the Outside/In team opens up the mailbag and answers your questions about the natural world. This time, they all share a preoccupation with a particular hue: blue. Come along as we learn about the differences between European and Aztec conceptions of the color ...  Show more

Blue is the most popular color in many parts of the world, and it can seem like it's everywhere. But many ancient languages didn’t have a word for blue, and some languages still don’t. This show was recorded live at a National Gallery of Art's NGA Nights event. Learn more about y ...  Show more

Up in the sky and down in the ocean, blue is the endcap of our visuall existence.One that may even influence us subconsciously. Find out why this color is the ultimate magician, appearing mostly as an illusion, in this episode of the Stuff to Blow Your Mind podcast.

Geologists and biologists have recently realized that the planet’s oceans and coasts are littered with a unique type of ecosystem called blue holes, submerged sinkholes that were once dry caves. They are turning out to be weird and amazing places.