While Earth’s natural history has been playing out over the last few billion years, another epic planetary saga has also been unfolding right next door.

Throughout the first half of the 20th century, Neandertals were thought to have been…primitive. Unintelligent, hunched-over cavemen, for lack of a better word. But the discoveries made in that Iraqi cave provided some of the earliest...

In order to understand where hearts came from, we have to go back to the earliest common ancestor of everything that has a heart. It took hundreds of millions of years, and countless different iterations of the same basic structure to...

Around the time that some of our fishapod relatives were crawling out of the water, others were turning around and diving right back in.

In some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the...

You’re alive right now… at least I’m pretty sure you are. But you’re not TOTALLY alive. Bits of you are always breaking down, being thrown out, and being replaced. Even right now, parts of you are dying. Some of your cells even died...

Walk into any forest, and beneath your feet is an elaborate social network that helps make life on Earth possible. It’s called the “Wood Wide Web”, a massive and intricate network of fungi that exchange water, nutrients, and chemical...

Looking up at the stars makes you wonder: what and who is out there? And why haven’t we seen any other intelligent civilizations given the vast size and age of the universe? They’re complicated questions and although we haven’t met any...

There is no phase of a human’s lifetime that is as strange and disgus....er....magical as the transition from childhood into adulthood - that handful of years that we call . . . PUBERTY. Why does it happen? How does it work? Why is it so...

Why do whales, elephants, and other large animals not get cancer? Logically, the larger an animal is, and the longer it lives, the more likely it should be to get cancer. But these giants don’t. Why is that? And can the answer help...

A massive new study has just been released showing that human activities are threatening Earth’s other life forms in some very bad ways. One million species may be at risk of extinction. Just let that sink in. Isn’t the Anthropocene...

You may not be an expert, but perhaps you feel pretty confident that you could ride a motorcycle, or give someone a decent haircut - if you absolutely had to - right? Not so much, according to the psychological phenomenon known as the...

You have questions, I have answers.

Antibiotic Resistance and the Rise of Superbugs

You have questions, I have answers.

There’s one rule on Space Time: It’s never Aliens. But every rule has an exception and this rule is no exception because: It’s never aliens, until it is. So is it aliens yet? And on today’s Space Time we’re going to examine all the best...

Peter McIndoe isn't a fan of birds. In fact, he has a theory about them that might shock you. Listen along to this eye-opening talk as it takes a turn and makes a larger point about conspiracies, truth and belonging in divisive times.

In athletics, in business, in life, everyone sets goals. But that's not the way to excel, according to former NFL player Emmanuel Acho, now an author and TV sports analyst. Here's what he says to do instead.

Ever think you'd hear Sandra Bullock, Britney Spears and Dolly Parton in one TED Talk? Here they are, courtesy of "Saturday Night Live" star Melissa Villaseñor. She shares the life lessons of a comedian -- complete with celebrity...

Artist Ersin Han Ersin invites us to step inside a giant sequoia tree, peering through the bark into the tapestry of life within. Discover how his multisensory installations explore the concept of "umwelt," or the unique sensory...

Everyone loses their temper from time to time — but the stakes are dizzyingly high when the focus of your fury is your own child. Clinical psychologist and renowned parenting whisperer Becky Kennedy is here to help. Not only does she...

Experiential artist Lucas Rizzotto was going through a tough breakup, so he did what anyone would do: he built a personal time machine. In a playful talk, he shares how his free-ranging experimentation led to various delightful,...

As a neurodivergent child going to school far from home, Misan Harriman found solace in the internet -- "an endless library of the extraordinary," as he calls it. In this powerful talk, he shares his journey as a self-taught photographer...

Could the tech industry's complex algorithms support people during their darkest times, rather than just deliver targeted ads? Drawing from his own experience with depression, global mental health researcher Sandersan Onie shows how...