Kurzgesagt – In a Nutshell

Why Earth Sucks Compared to the Planet Hestia

Kurzgesagt – In a Nutshell — Sat, 01 Aug 2026 00:05:38 GMT

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Sources & further reading:
https://sites.google.com/view/sources-perfect-planet/

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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The Uncomfortable Truth About Ozempic (Updated Version)

Kurzgesagt – In a Nutshell — Sat, 01 Aug 2026 00:05:17 GMT

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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.

All changes and the link to the original video (now unlisted) can be found here:
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This whole experience was annoying because we didn’t plan to make a controversial video – this caused us a lot of extra work but was obviously necessary.
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GERMANY IS OVER

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 23:43:25 GMT

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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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Why Are There No Holes Around Trees?

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 23:43:05 GMT

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Sources & further reading:
https://sites.google.com/view/sources-treesii/

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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Our Minds Are Weirder than You Think

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 23:23:29 GMT

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https://sites.google.com/view/sources-most-secret-place/

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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The Most Insane Megaproject You Never Heard About

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 23:23:13 GMT

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

Sources & further reading:
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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.

How did Project Plowshare come up? What happened to it, and why did it fail in the end?

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This Is the Scariest Place in The Universe

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 23:23:01 GMT

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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.

What exactly are cosmic voids and how did they form? What makes them so strange, and what role might they play in the future of the universe?

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We Made A New Channel!

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 22:42:05 GMT

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.

Continue watching on nightshift: https://kgs.link/NGT_PP

We’d love to hear what you think. 🖤

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We Made A New Journal

Kurzgesagt – In a Nutshell — Fri, 31 Jul 2026 22:41:59 GMT

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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