All 12 days in ONE video!

Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far)

In this video Paul Andersen explains the difference between diploid and haploid cells. He starts with a brief description of the central dogma and how genes code for proteins. He then uses the phenotype of red hair to explain that...

Journalist Carl Honore believes the Western world's emphasis on speed erodes health, productivity and quality of life. But there's a backlash brewing, as everyday people start putting the brakes on their all-too-modern lives.

In this stunning slideshow, celebrated nature photographer Frans Lanting presents The LIFE Project, a poetic collection of photographs that tell the story of our planet, from its eruptive beginnings to its present diversity. Soundtrack...

Few mistakes sour good writing like nominalizations, or, as Helen Sword likes to call them, zombie nouns. Zombie nouns transform simple and straightforward prose into verbose and often confusing writing. Keep your nouns away from...

Sixty-five million people were displaced from their homes by conflict and disaster in 2016. It's not just a crisis; it's a test of who we are and what we stand for, says David Miliband -- and each of us has a personal responsibility to...

NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.

Since its founding in 1851, the "New York Times" has published thousands of obituaries -- for heads of state, famous celebrities, even the inventor of the sock puppet. But only a small percentage of them chronicle the lives of women and...

Sloths have been on this planet for more than 40 million years. What's the secret to their success? In a hilarious talk, zoologist Lucy Cooke takes us inside the strange life of the world's slowest mammal and shows what we can learn from...

Paula Stone Williams knew from a young age that she was transgender. But as she became a parent and prominent evangelical pastor, she feared that coming out would mean losing everything. In this moving, deeply personal talk, Paula and...

The Hubble Telescope found more evidence of vast plumes of water bursting through the icy surface of Jupiter's moon Europa. What does this tell us about the potential for life on Europa?

Most of the time, it’s not great when an expensive spacecraft slams into an extraterrestrial body. But now and then mission control intentionally crashes a spacecraft for science!

With new data from the Keck telescopes, Andrea Ghez shows how state-of-the-art adaptive optics are helping astronomers understand our universe's most mysterious objects: black holes. She shares evidence that a supermassive black hole may...

Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.

As the coronavirus pandemic raged in her native Sri Lanka, monk JayaShri Maathaa had a thought: two magical words that planted something beautiful in her mind and blossomed into a whole new way of being. She shares how this mantra...

Thanks to spotted hyenas’ unusual social structure, males experience a tough life of solitude, harassment, and deprivation.

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How do you navigate life's growing number of transitions with meaning, purpose and skill? Writer Bruce Feiler offers a powerful way to handle uncertain, painful and confusing times -- or "lifequakes", as he calls them. Learn how to equip...

What if you could control digital devices using just the power of thought? That's the incredible promise behind the Stentrode -- an implantable brain-computer interface that collects and wirelessly transmits information directly from the...

Between the new, potentially Earth-like planets, organic molecules on Ceres, and SpaceX's successful launch, it's been quite a week in space!

Exactly when and where did life on Earth begin? Scientists have long thought that it emerged three billion years ago in the ocean -- until astrobiologist Tara Djokic and her team made an unexpected discovery in the western Australian...

In the early 1990s, a scandal rocked evolutionary biology: scientists discovered that songbirds -- once thought to be strictly monogamous -- engaged in what's politely called "extra-pair copulation." In this unforgettable biology lesson...

SPOILERS: It doesn't end well.

Let's face it, online dating can suck. So many potential people, so much time wasted -- is it even worth it? Podcaster and entrepreneur Christina Wallace thinks so, if you do it right. In a funny, practical talk, Wallace shares how she...