Scott Loarie has a challenge for you: go outside and take a picture of a living thing. He introduces the global community of people building a living atlas of the natural world by sharing their nature photos with scientists — and shows...

Why do we find it easier to trust some concepts and ideas over others? Mathematician and TED Fellow Adam Kucharski explores the science of uncertainty, revealing how the very human need for explanation shapes trust in science, fear of...

Is space the “final frontier” — or the perfect place to revolutionize life on Earth? Space architect Ariel Ekblaw reveals how self-assembling structures could build orbiting real estate in space dedicated to solving humanity’s greatest...

Coral reefs are the most biodiverse ecosystem on the planet and the lifeblood of a thriving ocean. Yet without action, 90 percent of coral reefs could die by 2050. Fortunately, reef guardian Theresa Fyffe has a plan. Learn how her team...

Accused of leaking state secrets, journalist Lei Cheng was imprisoned in China for more than three years, where she was detained in tight quarters and kept under constant supervision. “Freedom is wasted on the free,” she says, recounting...

Comedian Shalewa Sharpe recounts the hilarious tale of how capitalism broke her ankle, what’s going on with dive bar bathrooms and why she — a quiet soul who likes to sip chamomile tea — brings a tote bag to a wild night out.

Palm oil is in nearly every commodity you use — food, shampoo, makeup and more — but harvesting this essential material has contributed to the destruction of millions of hectares of forests globally. Sustainability leader Andika...

Comedian and writer Athena Kugblenu has a hot take: we’re all liars, and that’s OK. Exploring the line between the little lies that do no harm and the big, self-serving whoppers you’d best avoid, she offers a crucial question to ask...

Saying “I love you” often feels more meaningful in your first language than in any other language you learn later in life, explains linguist and polyglot Magdalena Hoeller. Unpacking the hidden challenges of intercultural relationships —...

What if the polarizing mess of social media, clickbait headlines and addictive algorithms isn't a breakdown of media but a transition to something better? Substack cofounder Hamish McKenzie explores how independent creators are growing a...

Yoshua Bengio — the world's most-cited computer scientist and a "godfather" of artificial intelligence — is deadly concerned about the current trajectory of the technology. As AI models race toward full-blown agency, Bengio warns that...

Headlines warn of a world in collapse, but solutions journalist Angus Hervey finds the overlooked triumphs that never make the news — from the rollout of malaria vaccines to the recovery of sea turtles. With hard data and stories from...

Look around — almost everything you see was manufactured, from baby formula to AI data centers and beyond. Yet we rarely think about how it’s all made. Factory fixer Lauren Dunford pulls back the curtain on modern manufacturing,...

In this video Paul Andersen shows how increasing ocean temperatures causes coral polyps to release their symbiotic algae. This process of coral bleaching decreases the availability of energy for the coral and may eventually lead to coral...

In which Mike Rugnetta teaches you about Ma'ui, prominent hero of many cultures in Oceania, aka the Pacific Island nations. Ma'ui is just the kind of hero we're interested in here at Crash Course. He's a culture hero, he's a an...

We can't know if or how animals understand death, but behavioral changes in some species could mean they experience something similar to human grief.

What separates struggling artists from successful ones? Looking to creative geniuses like Mozart, Edison and Monet, video creator Jon Youshaei explains why aiming to be prolific — despite flops and failures along the way — is the key to...

Leo Villareal is an artist, but his tools aren't paint and canvas; he manipulates light, color and computer code to create monumental works of public art. In a dazzling talk, he takes us inside his efforts to light up some of the world's...

As the cofounder of Advance Native Political Leadership, Anathea Chino creates space for Native American leaders to thrive in an often unwelcoming political system. Alongside comedian and filmmaker Negin Farsad, she discusses the power...

The key to deeply connecting with others is about more than just talking — it's about asking the right kinds of questions, says journalist and author Charles Duhigg. He explores research-backed tools to have more meaningful...

Software engineer Adam Munder is on a mission to break down communication barriers between the Deaf and hearing worlds. In a live demo, he introduces OmniBridge — an AI platform that translates American Sign Language into English text in...

Feeding 10 billion people without wrecking the planet means rethinking protein, from plant-based and fermented foods to lab-grown meat that tastes like the real thing. Presenting an exciting menu of sustainable options, food futurist...

Confidence doesn’t come before action — it comes from taking action, says business leader Kat Cole, who worked her way up from waitress to CEO of a global health company. She presents a simple yet powerful practice called the "hot shot...

Feeling stuck on the big issues? Neuroscientist Kris De Meyer has a surprising fix. Instead of waiting for information to get you motivated, he shows how taking small actions in your personal life can rewire your brain to get unstuck....