Photographer Brian Skerry shoots life above and below the waves -- as he puts it, both the horror and the magic of the ocean. Sharing amazing, intimate shots of undersea creatures, he shows how powerful images can help make change.

Aboard Mission Blue, scientist Greg Stone tells the story of how he helped the Republic of Kiribati to create an enormous protected area in the middle of the Pacific -- protecting fish, sealife and perhaps the island nation itself.

The photo director for National Geographic, David Griffin knows the power of photography to connect us to our world. In a talk filled with glorious images, he talks about how we all use photos to tell our stories.

La vita di Bruno Segre non ha nulla da invidiare alla trama di un romanzo. Nato a Torino il 4 settembre 1918, la sua storia è costellata di eventi straordinari. Per citarne uno: nel 1942 viene arrestato per disfattismo e nel 1944, come in un film di Hollywood, si salva da una sparatoria della Guardia Nazionale Repubblicana grazie al portasig...

Todo progreso recae en la curiosidad.