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What happens when your time machine breaks and you end up stranded millions of years ago? You've landed in a world that's ...

Absolutely everything you think about yourself and the universe could be an illusion. As far as you know, you are real and exist in ...

Reality is not real. Your world is a prediction. Every sight, sound, and touch you experience is the result of calculations your brain ...

The universe isn't just a vast empty ocean sprinkled with galaxies – most of the atoms are actually drifting in between, in the ...

What is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ...

The night sky seems peaceful and orderly. But in reality, stars are careening through the galaxy at speeds of hundreds of ...

We've found a new planet, home to octillions of the most extreme beings living in the most absurd and deadly hellscape.

The universe today is happy and healthy, with exciting things going on – but at some point the night will turn dark. Everything that ...

You've got trillions of viruses inside you – right now! But these aren't the viruses you fear. Some of them are your body's secret ...

At the height of the Cold War, a terrifying concept emerged: a bomb so powerful it wouldn't need to be dropped. Known as Project ...

What happens if we bring the sun to earth? No, seriously. OUR CHANNELS ...

Gravastars could change how we think about the universe. These cosmic objects solve black holes' biggest problems without ...

When we think about alien civilizations we tend to look into the vastness of space, to far away planets. But there is another ...

Inside neutron stars we can find the weirdest and most dangerous substance in the universe: Strange matter. What is strange ...

Look around you. Where are you? Where is this place you are occupying? Somewhere in a room, maybe in a city on a continent ...

South Korea is heading toward a demographic collapse unlike anything the world has seen before. With the lowest fertility rate ...

Most of us love animals but also eat meat. Unfortunately, most animals we eat live in truly horrible conditions. We don't torture ...

Could aliens destroy us from light years away? Another day at Kurzgesagt Labs, where we answer the most important questions ...

Earth is 4.5 billion years old - which is approximately the same amount of time it took us to create this video. We've scaled the ...

The Egg Story by Andy Weir Animated by Kurzgesagt A Big Thanks to Andy Weir for allowing us to use his story. The original was ...