Youtube Channel Kurzgesagt – In a Nutshell

The Impenetrable Barrier Trapping Us in the Solar System

Tue, 04 Aug 2026 21:59:53 +0800

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After exploring most of Earth, venturing into space and exploring other planets, stars and galaxies seemed like an exciting, and even obvious next step. But the deeper we look, the more the universe reveals a hidden barrier between our Solar System and everything else around it. From the vast empty space, to the laws of physics themselves, there are many reasons why the dream of space travel might stay just a dream.

What is stopping us from reaching the stars? Why does space become more dangerous the faster you travel, and could even advanced alien civilizations be trapped around their home worlds?

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Building a Secret Moon Base

Mon, 27 Jul 2026 22:00:04 +0800

video duration is 1:7. Deep inside the Moon’s permanently shadowed craters lies a hidden treasure: ice. If we can harness it for water, fuel, and construction, these frozen, lightless pits could become the perfect place for humanity’s first permanent Moon base.

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The Deadliest Thing in Your Kitchen

Thu, 23 Jul 2026 22:00:17 +0800

video duration is 1:7. Sugar, salt, cinnamon, saffron... which common kitchen ingredient is the deadliest?

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The 3 Most Brutal Weapons in Nature

Tue, 07 Jul 2026 22:00:16 +0800

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There is a hidden world filled with monsters you never heard of, from predators who spit acid and shoot harpoons, to armored hunters that devour their prey alive. Deep in the oceans, and even in fresh water from puddles and lakes, these microscopic super predators remained hidden in plain sight, and evolved over the last 2 billion years.

What are the deadliest predators of the microworld, and what kind of bizarre biological weapons have they evolved over the past billions of years?

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The True Cost of War

Mon, 06 Jul 2026 22:00:09 +0800

video duration is 1:12. War costs far more than weapons and destroyed buildings. It leaves countries poorer, disrupts education, drives migration, and passes trauma to future generations. Some of its highest costs are paid decades later.

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What is El Niño?

Wed, 01 Jul 2026 22:00:35 +0800

video duration is 1:0. First noticed by South American fishermen in the 1600s, El Niño can affect the weather significantly!

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The World’s Most Average Person

Mon, 29 Jun 2026 22:00:17 +0800

video duration is 1:10. If you averaged all 8 billion people together, what would you get? Meet the world’s most average person: where he lives, what he earns, what he eats, and how he’ll change over the next century.

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Processed Food Won’t Kill You

Mon, 22 Jun 2026 22:00:06 +0800

video duration is 1:7. From bread and yogurt to frozen vegetables, most of us eat processed food every day. The real story is more complicated than “processed = bad”, and some processing can even make food safer and more nutritious.

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What Exactly IS a Memory?

Tue, 16 Jun 2026 22:00:03 +0800

video duration is 13:55. Avoid your blindspots and get every side of every story at https://ground.news/nutshell. Subscribe for 40% off unlimited access.

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Memory is one of the strangest abilities you possess. Your brain uses an incredibly complex biological system to preserve moments from your past that no longer exist, allowing you to revisit experiences from years ago. But memories are not always recordings of reality. In fact, every time a memory comes under the spotlight of your attention, it can melt and change a tiny bit.

What exactly is a memory, how is a moment in time stored inside your brain, and why does remembering something slowly rewrite the story of your life?

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The Power of 1%

Mon, 15 Jun 2026 22:00:16 +0800

video duration is 1:17. What could 1% of the richest countries’ income achieve? From malaria vaccines and clean water to renewable energy, a surprisingly small fraction of global wealth could transform millions of lives.

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Let’s Steal a New Moon

Wed, 10 Jun 2026 22:00:28 +0800

video duration is 1:10. What if Earth could swap its Moon for a better one? From volcanic Io to methane-soaked Titan, the Solar System offers some tempting alternatives. But maybe our Moon is already perfect.

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Your Brain Peaked at Birth

Thu, 04 Jun 2026 22:00:12 +0800

video duration is 1:12. Babies may seem helpless, but their brains are incredible learning machines. They can hear sounds from any language, recognize faces adults can't, and build millions of neural connections every second. 🧠👶

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The Deadliest Year of Your Life

Mon, 01 Jun 2026 22:19:25 +0800

video duration is 1:14. Which year of your life is the most dangerous? For many people, it’s not old age but infancy. Where you're born can dramatically change your chances of survival, and millions of child deaths are still preventable today.

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Why Earth Sucks Compared to the Planet Hestia

Tue, 26 May 2026 22:00:08 +0800

video duration is 14:52. Go to https://brilliant.org/nutshell/ to try Brilliant's tutor for free + get 20% off the premium subscription!

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Earth may seem like the perfect planet for life, but huge parts of our planet are actually hostile deserts of ice, rock, heat or darkness. Even our oceans are mostly barren voids where almost nothing can survive. But as we discover and research more exoplanets, we are beginning to wonder whether there could be worlds that are far better suited for life than Earth ever was, and where ecosystems flourish on a scale we can barely even imagine.

Could there be a Super-Earth that is not just habitable, but truly ideal for life? What would such a world look like, and what kinds of creatures would we find there?

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Let’s Talk About Ozempic (Updated Version)

Tue, 19 May 2026 22:00:15 +0800

video duration is 15:52. Do you have a balanced news diet? Go to https://ground.news/nutshell to see reporting from a variety of sources and perspectives around the world. Subscribe for 40% off their unlimited access Vantage plan through our link.

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Losing weight is hard, and obesity is one of the unhealthiest things that can happen to your body. It increases your risk of diabetes, heart attacks, cancer, and can lead to a series of other health complications. But today, the new weight loss drugs are often used to tackle the obesity. How do these drugs work? What do they do to our metabolism, and could they change public health forever?

IMPORTANT:

This is an updated version from the original video we released over a month ago.

The first version did not contain wrong information but our framing was not good enough – after hearing your feedback it was clear that we didn’t communicate the topic well – so we revised the script, made the video longer and added more information and clarifications at key points.

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Thanks again for your honest feedback and for helping us get better. We truly appreciate it.

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Where Did the Antimatter Go?

Mon, 18 May 2026 22:00:30 +0800

video duration is 1:15. Pigeons can pinpoint their location hundreds of kilometers from their roosts and navigate home autonomously, only using smell, the sun, and even Earth’s magnetic field.

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Could Humans Evolve Flight?

Thu, 14 May 2026 22:00:16 +0800

video duration is 1:12. Flying like a bird would require way more than wings. Hollow bones, giant chest muscles, rewired nerves, and absurd amounts of food would transform you into something barely human anymore.

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How to Survive Malaria

Mon, 11 May 2026 22:01:08 +0800

video duration is 1:7. Caught malaria? Fast treatment can save your life. Modern drugs kill the parasites attacking your blood, but resistance is growing fast, and without treatment, severe malaria is often deadly.

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The Parasite That Suffocates You

Fri, 08 May 2026 22:00:42 +0800

video duration is 1:17. Malaria doesn’t just make you sick, it suffocates your organs from the inside. As parasites invade your blood cells, they trigger fevers, block vessels, and can shut down the brain itself.

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GERMANY IS OVER

Tue, 05 May 2026 22:00:01 +0800

video duration is 14:4. Do you have a balanced news diet? Go to https://ground.news/nutshell to see reporting from a variety of sources and perspectives around the world. Subscribe for 40% off their unlimited access Vantage plan through our link.

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Germany is heading towards a population collapse. For decades, birth rates have remained below replacement levels, while people are living longer than ever before. As a result, the population is now rapidly aging and facing a growing imbalance between the number of workers and retirees. This shift is putting pressure not only on Germany's pension system, but also on jobs, healthcare, and the services people rely on every day.

So how did Germany get here and what will be the consequences? Is there a way to avoid this demographic collapse and if so, how?

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Pigeons Are GPS Drones

Thu, 30 Apr 2026 22:00:48 +0800

video duration is 1:6. Pigeons can pinpoint their location hundreds of kilometers from their roosts and navigate home autonomously, only using smell, the sun, and even Earth’s magnetic field.

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Why Laughing Gas Feels Good

Mon, 27 Apr 2026 22:01:38 +0800

video duration is 1:14. Laughing gas can make you feel relaxed and euphoric in seconds. But it comes with serious risks like oxygen deprivation and nerve damage.

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Fast-Forward Your Life

Thu, 23 Apr 2026 22:00:23 +0800

video duration is 1:4. What if you could skip the boring and painful parts of life? It sounds tempting until you realize what you’d lose along the way. Time doesn’t stop, and neither does the world.

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Let’s Explore Your Most Secret Place: Your Mind

Tue, 21 Apr 2026 22:00:01 +0800

video duration is 12:21. Discover Odoo 👉 https://www.odoo.com/r/ysX

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Your mind is the only place in the universe that only you can access. It’s where all of your thoughts, memories and emotions exist. A whole inner universe that is being shaped by your biology, experiences and imagination. It's what makes you: you. There is a wide spectrum of minds in nature, however humans have taken theirs to another level. Our minds can reflect on themselves, simulate other perspectives, and even construct entire fictional worlds.

What exactly is a mind? How and why did it evolve, and could it be the most secret place in the universe?

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Why Being Poor Is Expensive

Thu, 16 Apr 2026 22:00:55 +0800

video duration is 1:12. Poverty isn’t just having less money, it makes everything more expensive. From fees to bad options, one setback can spiral into long-term struggle. Here’s how the trap works.

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How Caffeine Works

Mon, 13 Apr 2026 22:01:13 +0800

video duration is 1:11. Caffeine tricks your brain into staying awake by blocking fatigue signals. It boosts focus,... until it doesn’t. Here’s how it works, what happens in your brain and why more isn’t always better.

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The World’s Deadliest Diseases

Thu, 09 Apr 2026 22:01:19 +0800

video duration is 1:11. From malaria to tuberculosis, infectious diseases still kill millions every year. For survivors, it’s not just a health battle, it also drains time and money, often trapping people in poverty. By lowering treatment costs and enabling people to live healthy lives, every dollar invested not only saves lives but also boosts economies so places once held back by disease can thrive.

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The Most Insane Megaproject You Never Heard About

Mon, 30 Mar 2026 22:00:12 +0800

video duration is 13:5. Do you have a balanced news diet? Go to https://ground.news/nutshell to see reporting from a variety of sources and perspectives around the world. Subscribe for 40% off their unlimited access Vantage plan through our link.

Visit https://www.youtube.com/@nightshift_kurzgesagt and explore the weird, beautiful, and sometimes unsettling side of history.

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At the height of the Cold War, nuclear weapons were seen not only as devices of destruction, but also as tools for progress. Project Plowshare was a bold attempt to use atomic explosions for more practical purposes: from digging canals and creating harbors to reshaping entire landscapes. This project was designed to push the limits of what seemed possible, but instead turned into an environmental disaster.

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Spaceships Powered by Nukes

Mon, 23 Mar 2026 23:00:38 +0800

video duration is 1:8. What if we powered a spaceship with nuclear bombs? Great Question! Project Orion proposed detonating thousands of nukes behind a spacecraft to push it across the solar system.

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Queen Ant Clones Another Species

Mon, 16 Mar 2026 23:00:43 +0800

video duration is 1:9. This ant queen runs one of the strangest genetic systems in nature. She produces queens, hybrid workers, and even male clones of another species to mate with future generations. 🐜

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Let’s Travel to the Scariest Place in The Universe

Tue, 10 Mar 2026 23:00:01 +0800

video duration is 9:56. Check out the latest Space Souvenirs Drop on the kurzgesagt shop: https://shop.kgs.link/space-souvenirs, a special collection for anyone who wants to travel the universe in style.

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Most of the universe is not made of stars, galaxies, or beautiful glowing nebulae. Instead, the majority of it is what seems to be vast, silent emptiness. Huge cosmic voids stretching hundreds of millions of light years across, containing almost nothing at all. But these dark regions are not just empty space. They are dynamic structures that grow, merge, and shape the entire architecture of the universe.

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The Injection That Stops HIV

Mon, 09 Mar 2026 23:01:12 +0800

video duration is 1:5. Malaria has killed humans for millennia. From DDT to bed nets, vaccines, and genetically modified mosquitoes, we’ve pushed back... but resistance and climate change threaten progress. The war isn’t over.

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Let’s Tie All Planets Together

Sat, 07 Mar 2026 23:00:07 +0800

video duration is 0:59. What if we tied all the planets together with one giant rope? Their different speeds, spins, and the Sun itself would quickly turn the Solar System into chaos. Let’s go!

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Who Owns Your Drinking Water?

Thu, 05 Mar 2026 23:01:05 +0800

video duration is 1:13. If all Earth’s water were 100 liters, usable freshwater would be just half a teaspoon. So who controls it? Governments, companies, and communities all compete for the world’s most essential resource.

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This Parasite Won’t Die

Thu, 26 Feb 2026 23:00:39 +0800

video duration is 1:8. Malaria has killed humans for millennia. From DDT to bed nets, vaccines, and genetically modified mosquitoes, we’ve pushed back... but resistance and climate change threaten progress. The war isn’t over.

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Why Does Cocaine Feel So Good?

Thu, 19 Feb 2026 23:00:37 +0800

video duration is 1:11. Cocaine can make you feel powerful and euphoric in seconds, but it hijacks your brain’s reward system and strains your heart. Here’s what really happens inside your body when you take it.

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Why We Should Give Ozempic to Everybody

Tue, 17 Feb 2026 22:59:14 +0800

video duration is 12:51. Do you have a balanced news diet? Go to https://ground.news/nutshell to see reporting from a variety of sources and perspectives around the world. Subscribe for 40% off their unlimited access Vantage plan through our link.

Get up to 60% off selected posters in the kurzgesagt shop, for a limited time only! https://shop.kgs.link/sale-26

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Losing weight is hard, and obesity is one of the unhealthiest things that can happen to your body. It increases your risk of diabetes, heart attacks, cancer, and can lead to a series of other health complications. But today, the new weight loss drugs are changing people’s lives in a way no diet ever has before. They seem to melt fat away, reduce addiction and even prevent or reverse the negative effects of obesity.

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Why Is Polio Back?

Mon, 16 Feb 2026 23:02:57 +0800

video duration is 1:16. Polio was nearly eradicated. But immunity gaps allow the virus to resurface. The fight isn’t over, and one case can spark an outbreak.

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The Worm with 4 Nobel Prizes

Sat, 14 Feb 2026 23:00:15 +0800

video duration is 1:5. This tiny worm helped scientists map every cell, trace the first brain connectome, light up genes, and unlock powerful genetic tools. With four Nobel prizes linked to it, C. elegans quietly changed science forever.

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The Virus We Almost Beat

Wed, 11 Feb 2026 23:01:13 +0800

video duration is 1:18. Polio once paralyzed hundreds of thousands of children every year. Vaccines nearly wiped it out, but if immunization rates drop, the virus can spread again. This fight isn’t over.

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The Lake That Killed a Village

Mon, 09 Feb 2026 23:01:20 +0800

video duration is 1:14. A quiet lake released a cloud of carbon dioxide that suffocated an entire village. No warning. No smell. No escape. What happened at Lake Nyos in 1986 and at Lake Monoun in 1984 is a rare disaster, but it could happen again.

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Zombie Proteins in Your Brain!

Fri, 30 Jan 2026 01:41:55 +0800

video duration is 1:11. Some proteins can turn into zombies, infect others, and wreak havoc in your brain. These misfolded invaders are callde Prions and might hold the key to Alzheimer’s, Parkinson’s, and the future of neuroscience.

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Jupiter Made Earth Possible

Thu, 22 Jan 2026 23:01:42 +0800

video duration is 1:11. Jupiter once wandered deep into the inner Solar System. It disrupted rocks, shaped Mars, and helped Earth form. Without it, life on Earth might not even exist. Thanks, big guy.

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We Made A New Channel!

Fri, 16 Jan 2026 23:30:05 +0800

video duration is 3:3. For years, we’ve been dreaming of a second channel. A channel where we could tell different kinds of stories and dive into something else we deeply care about: history. Because the story of the past is also the story of us, of humanity. Welcome to the nightshift. 🌚

Our first video dives into the extraordinary story of Zheng Yi Sao, a young woman who built the largest pirate confederation the world has ever seen. Her floating shadow state of 1,800 ships and 70,000 pirates pushed the Chinese Empire to its limits and reshaped trade in the South China Sea.

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We’d love to hear what you think. 🖤

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Planets Around Black Holes

Thu, 15 Jan 2026 23:00:45 +0800

video duration is 1:15. Could planets form around black holes? Maybe! These “blanets” wouldn’t orbit stars but black holes.

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Let’s Cook a Planet!

Mon, 12 Jan 2026 23:01:31 +0800

video duration is 1:10. In today's easy-to-follow recipe, we'll cook a planet from scratch. Enjoy!

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Nature’s Ultimate Impostor

Thu, 08 Jan 2026 23:01:44 +0800

video duration is 1:20. This larva wears a fake face on its butt to sneak into termite cities to scam its way into free food and grooming.

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Why Are There No Holes Around Trees?

Wed, 07 Jan 2026 23:00:13 +0800

video duration is 12:0. Go to https://brilliant.org/nutshell/ to dive deeper into these topics and more for free for a full 30 days + get 20% off the premium subscription!

This video was sponsored by Brilliant. Thanks a lot for the support!

Get your LIMITED EDITION Golden Duck Pin here https://shop.kgs.link/golden and join us in celebrating 25 million subscribers! Thank you to each and every one of you for making this happen ❤️

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Trees are among the most fascinating life forms on Earth, but what makes them truly fascinating is hiding underground! They are able to break solid rocks with hydraulic roots, all while working together with the underground fungal networks that can stretch for kilometers. Above and below, trees are running biological empires we’re only beginning to understand.

How does something so massive survive with roots growing so shallow? What are trees really made of and how are they able to grow so big?

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We Made A New Journal

Tue, 30 Dec 2025 23:01:04 +0800

video duration is 1:16. Taking care of your health can often feel overwhelming, but it doesn’t have to be! We created our brand new Health Journal to set you up for success in the new year with science-backed, easy-to-use frameworks and plenty of beautiful illustrations. It’s designed to help you improve your health in a way that works for you, without pressure or guilt. Get yours now, only on the kurzgesagt shop: https://shop.kgs.link/health-journey

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The Moon’s Invisible Threat

Thu, 18 Dec 2025 23:00:53 +0800

video duration is 1:24. Moon dust is no joke: it floats, clings, and cuts like glass. Each landing sends deadly particles flying through space and scientists are still scrambling for fixes.

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