Get a bird's eye view of Earth's mesmerizing beauty, from the sky and outer space.

These photographers capture beautiful and sometimes sobering images, using their art to help fight for social justice.

Blaise Aguera y Arcas leads a dazzling demo of Photosynth, software that could transform the way we look at digital images. Using still photos culled from the Web, Photosynth builds breathtaking dreamscapes and lets us navigate them.

An iconic painting. An ancient manuscript. A cylinder with 2600 years of history. Learn about artifacts and images that have intrigued humans for centuries, and why we find them so alluring.

As an expert on cutting-edge digital displays, Mary Lou Jepsen studies how to show our most creative ideas on screens. And as a brain surgery patient herself, she is driven to know more about the neural activity that underlies invention, creativity, thought. She meshes these two passions in a rather mind-blowing talk on two cutting-edge brain st...

Travel across the universe (or is it universes?) to see stunning images of Saturn's rings, hear haunting sounds from distant black holes and catch an infectious sense of wonder about galaxies far, far away.

Every day, we're surrounded by images of other people. Highly curated portfolios featuring the best snapshots of lives being lived. How does being bombarded with these images ultimately shape how we see ourselves? Artist Christina Balch wants to change the appearance we choose to celebrate, by taking a selfie every day at the ugliest possible ti...

Our world is more visual than ever before. Millions of images created daily are steering elections, changing lives and crashing servers. David Hooker, lead creative at presentation platform Prezi, argues that this situation makes visual literacy a key life skill to cultivate. "Images are too important to outsource to others," he says. "And too p...

In this moving talk, documentary photographer Kristen Ashburn shares unforgettable images of the human impact of AIDS in Africa.

Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster -- by getting smaller. He introduces his tiny satellites -- no bigger than 10 by 10 by 30 centimeters -- that, when launched in a cluster,...

Image-maker Alexander Tsiaras shares a powerful medical visualization, showing human development from conception to birth and beyond. (Some graphic images.)

Inventor Nick Sears demos the first generation of the Orb, a rotating persistence-of-vision display that creates glowing 3D images. A short, cool tale of invention.

In this short talk, TED Fellow Sarah Parcak introduces the field of "space archaeology" -- using satellite images to search for clues to the lost sites of past civilizations.

Planetary scientist Carolyn Porco shows images from the Cassini voyage to Saturn, focusing on its largest moon, Titan, and on frozen Enceladus, which seems to shoot jets of ice.

Educator Roy Gould and researcher Curtis Wong show a sneak preview of Microsoft's WorldWide Telescope, which compiles images from telescopes and satellites to build a comprehensive, interactive view of our universe.

Photographer Monika Bulaj shares powerful, intimate images of Afghanistan -- of home life, of ritual, of men and women. Behind the headlines, what does the world truly know about this place?

Artist Eric Dyer spent years working at a computer to produce images for the screen. Longing to get his hands back on his work, he began exploring the zoetrope, a popular 19th-century device that was used to create the illusion of motion long before the arrival of film. In this vibrant talk, he showcases his resulting art inventions: spinning sc...

Vik Muniz makes art from pretty much anything, be it shredded paper, wire, clouds or diamonds. Here he describes the thinking behind his work and takes us on a tour of his incredible images.

Photographer Phil Borges shows rarely seen images of people from the mountains of Dharamsala, India, and the jungles of the Ecuadorean Amazon. In documenting these endangered cultures, he intends to help preserve them.

Accepting his 2005 TED Prize, photographer Edward Burtynsky makes a wish: that his images -- stunning landscapes that document humanity's impact on the world -- help persuade millions to join a global conversation on sustainability.

Artist Chris Jordan shows us an arresting view of what Western culture looks like. His supersized images picture some almost unimaginable statistics -- like the astonishing number of paper cups we use every single day.

By making photographs that seem to show our favorite celebs (Diana, Elton John) doing what we really, secretly, want to see them doing, Alison Jackson explores our desire to get personal with celebs. Contains graphic images.

Paula Scher looks back at a life in design (she's done album covers, books, the Citibank logo ...) and pinpoints the moment when she started really having fun. Look for gorgeous designs and images from her legendary career.

Reed Kroloff gives us a new lens for judging new architecture: is it modern, or is it romantic? Look for glorious images from two leading practices -- and a blistering critique of the 9/11 planning process.

We know the negative images of Africa -- famine and disease, conflict and corruption. But, says Ngozi Okonjo-Iweala, there's another, less-told story happening in many African nations: one of reform, economic growth and business opportunity.

Photographer Lisa Kristine travels the world documenting the unbearably harsh realities of modern-day slavery. She shares hauntingly beautiful images -- miners in the Congo, bricklayers in Nepal -- that illuminate the plight of the 27 million souls enslaved worldwide.

Forget stitches -- there's a better way to close wounds. In this talk, TED Fellow Joe Landolina talks about his invention -- a medical gel that can instantly stop traumatic bleeding without the need to apply pressure. (Contains medical images.)

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.

Legendary ocean researcher Sylvia Earle shares astonishing images of the ocean -- and shocking stats about its rapid decline -- as she makes her TED Prize wish: that we will join her in protecting the vital blue heart of the planet.

As the leader of the Imaging Team on the Cassini mission to Saturn, Carolyn Porco interprets and shares the pictures coming back from this fascinating planet, its rings and its moons.