Fascinating, insightful talks on what it means to be human and live a good life.

Meander through Earth's lengthy timeline with these talks that go way, way back to the beginning of everything (as we know it so far, that is).

Explore endless waters with these captivating talks that shine some (literal) light on what’s going in the deepest, darkest parts of our oceans.

We have 3,000 TED Talks and counting. Sometimes, things get a little buried. Check out some great TED Talks that flew under the radar.

Sometimes, things get a little buried in our archive of 2,800+ TED Talks. Check out some great ones, unearthed for your viewing pleasure.

Sometimes, things get a little buried in our archive of 3,000+ TED Talks. Check out some great ones, unearthed for your viewing pleasure.

In India (and many other countries), girls and women still find themselves silenced by traditional rules of politeness and restraint, says social scientist Deepa Narayan. In this frank talk, she identifies seven deeply entrenched norms that reinforce inequality -- and calls on men to help usher in change.

In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life.

With vibrant video clips captured by submarines, David Gallo takes us to some of Earth's darkest, most violent, toxic and beautiful habitats, the valleys and volcanic ridges of the oceans' depths, where life is bizarre, resilient and shockingly abundant.

When Sue Austin got a power wheelchair, she felt a tremendous sense of freedom -- yet others looked at her as though she had lost something. In her art, she conveys the spirit of wonder she feels wheeling through the world. Includes thrilling footage of an underwater wheelchair that lets her explore ocean beds, drifting through schools of fish, ...

Tuna are ocean athletes -- fast, far-ranging predators whose habits we're just beginning to understand. Marine biologist Barbara Block fits tuna with tracking tags (complete with transponders) that record unprecedented amounts of data about these gorgeous, threatened fish and the ocean habitats they move through.

Our talks featuring sharks -- arguably one of the more misunderstood creatures of the deep blue sea.

No need to panic: Take a deep breath, and power through your moments of doubt and burnout with the help of these talks.

How deep into the Earth can we go and still find life? Marine microbiologist Karen Lloyd introduces us to deep-subsurface microbes: tiny organisms that live buried meters deep in ocean mud and have been on Earth since way before animals. Learn more about these mysterious microbes, which refuse to grow in the lab and seem to have a fundamentally ...

Maybe a huge project just landed on your desk. Or you’re feeling like your co-workers don’t appreciate you. Whatever has you down, these talks offer the deep breath you need.

Amazing, inspiring feats of daring and determination that will bring you everywhere from the high skies to the deep sea.

These talks honor those who have fought for their country while shedding light on what coming home from war means for many whose wounds are more than skin-deep.

Ocean explorer Robert Ballard takes us on a mindbending trip to hidden worlds underwater, where he and other researchers are finding unexpected life, resources, even new mountains. He makes a case for serious exploration and mapping. Google Ocean, anyone?

Yann LeCun, the chief AI scientist at Facebook, helped develop the deep learning algorithms that power many artificial intelligence systems today. In conversation with head of TED Chris Anderson, LeCun discusses his current research into self-supervised machine learning, how he's trying to build machines that learn with common sense (like humans...

There is much to learn in death as there is in life. An intimate look at the wisdom that is forged from deep loss.

When he was young, artist Shih Chieh Huang loved taking toys apart and perusing the aisles of night markets in Taiwan for unexpected objects. Today, this TED Fellow creates madcap sculptures that seem to have a life of their own—with eyes that blink, tentacles that unfurl and parts that light up like bioluminescent sea creatures.

Cave explorer and geologist Francesco Sauro travels to the hidden continent under our feet, surveying deep, dark places inside the earth that humans have never been able to reach before. In the spectacular tepuis of South America, he finds new minerals and insects that have evolved in isolation, and he uses his knowledge of these alien worlds to...

The thrill of chasing your dreams and pursuing creative endeavors can wear on you. When things feel overwhelming, take a deep breath and let these TED Talks reinvigorate your sense of purpose and passion.

Deepa Narayan is an international advisor on poverty, gender and development with more than 25 years of experience working at the World Bank, the UN and NGOs.

What do you do when your beliefs and understanding of the world have been challenged, unraveled or even destroyed? Take a deep breath and learn from TED's best on how to approach these moments with grace and fortitude.

TED Studies, created in collaboration with Wiley, are curated video collections — supplemented by rich educational materials — for students, educators and self-guided learners. In The Deep Ocean, aquatic explorers take the TED stage to share what they've seen in the abyss of Earth's last frontier: the deep ocean, home to massive underwater mount...

The almighty brain! ... The problem is, we only get one. These talks have great advice on what we can do to ensure its health and well-being.

There's nothing quite like a good night's sleep. What if technology could help us get more out of it? Dan Gartenberg is working on tech that stimulates deep sleep, the most regenerative stage which (among other wonderful things) might help us consolidate our memories and form our personalities. Find out more about how playing sounds that mirror ...

In a series of mind-bending demos, inventor Mary Lou Jepsen shows how we can use red light to see and potentially stimulate what's inside our bodies and brains. Taking us to the edge of optical physics, Jepsen unveils new technologies that utilize light and sound to track tumors, measure neural activity and could possibly replace the MRI machine...

The ground beneath your feet is home to a massive, mysterious world of microbes -- some of which have been in the earth's crust for hundreds of thousands of years. What's it like down there? Take a trip to the volcanoes and hot springs of Costa Rica as microbiologist Karen Lloyd shines a light on these subterranean organisms and shows how they c...