635 light-years from where you are sitting, way out in outer space, lies a planet. The first planet to be discovered inside the habitable zone of a Sun-like star. Its name is Kepler 22-b. When a planet is located within a star’s habitable zone, it means that there is a […]
Humanity’s nuclear arsenal is capable of destroying all life on Earth. Over. And over. And over. Maybe it’s time we dumped it far away. We might want to inhabit other planets in the future, so how about our closest star? How many nukes could we throw at the Sun? What […]
There are places in the Universe where you could turn to ash, freeze to death or be completely crushed by gravity. And you’re about to visit them all. What conditions make some of these exoplanets so dangerous? What would happen if you set foot on them? And which planet would […]
Download the Speakly app at https://speakly.app.link/Speakly and get a 60% discount if you join the annual subscription. Something is very wrong with our Sun. It’s turned into a spinning lighthouse of death. What would make the Sun so much more deadly than usual? Would there be any way life on […]
Sources and further reading: https://sites.google.com/view/sources-stellar-engines Get your Stellar Engine Infographic Poster here: https://shop.kurzgesagt.org Nothing in the Universe is static. In the milky way, billions of stars orbit the galactic center. Some, like our sun, are pretty consistent, keeping a distance of around 30,000 light years from the galactic center, completing […]
Get a free What If Top 10 book when you sign up for our newsletter: https://underknown.com/newsletter/ Dark, mysterious and consuming everything around them, black holes will rip apart anything that passes their event horizons. But could there be more? What would happen if you fell into one of those monstrosities? […]
YouTube FanFest with HP in Mumbai: http://www.youtubefanfest.com/india/ Follow Michael Stevens: https://twitter.com/tweetsauce SOURCES BELOW Guy (editor/production): https://twitter.com/guylar music from: http://www.youtube.com/JakeChudnow and http://www.audionetwork.com Celestia 3D space software: http://sourceforge.net/projects/celestia/ Another great visualization of star locations in 3D space: http://moebio.com/exomap/viewsofthesky/2/ minutephysics video about why it’s dark at night: http://www.youtube.com/watch?v=gxJ4M7tyLRE my video on moving illusions: […]
Go to https://www.blinkist.com/whatif to receive free unlimited access for 1 week and 25% off a premium membership to this video’s sponsor, Blinkist. This is our Universe, an ever-expanding network of stars and galaxies. And this is your brain. Don’t they look eerily similar to one another? Why are they so […]
We created our first app ‘Universe in a Nutshell’, together with Tim Urban of Wait but Why! Appstore: http://kgs.link/universe-app-ios Google Playstore: http://kgs.link/universe-app-android Sources & further reading: https://sites.google.com/view/sourceslargeststar Wait But Why: https://waitbutwhy.com/ Video on Red Dwarfs: https://www.youtube.com/watch?v=LS-VPyLaJFM&vl=pt What is the largest star in the Universe? And why is it that large? […]
13.8 billion years ago, the entire Universe emerged from one single point in space. This theory is known as the Big Bang. And it’s the most widely accepted story of the creation of our Universe. But what if we have this all wrong? What if the Universe didn’t start like […]
