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).

We have 2,600+ 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.

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.

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

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.

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.

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...

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, ...

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 ...

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...

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.

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?

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.

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

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.

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 ...

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.

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.

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...

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

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.

On more than 120 deep-sea expeditions, Robert Ballard has made many major natural discoveries, such as the deep-sea vents. Oh, and he found the Titanic.

Novelist Amy Tan digs deep into the creative process, looking for hints of how hers evolved.

Karen Lloyd studies novel groups of microbes in Earth's deep surface biosphere, collecting them from disparate remote places such as Arctic fjords, volcanoes in Costa Rica, even deep in mud in the Marianas Trench

Bettina Warburg is a blockchain researcher, entrepreneur and educator. A political scientist by training, she has a deep passion for the intersection of politics and technology.

After hitting on a brilliant new life plan, our first instinct is to tell someone, but Derek Sivers says it's better to keep goals secret. He presents research stretching as far back as the 1920s to show why people who talk about their ambitions may be less likely to achieve them.

Think of penguins as ocean sentinels, says Dee Boersma -- they're on the frontlines of sea change. Sharing stories of penguin life and culture, she suggests that we start listening to what penguins are telling us.