Season
Season 13 Episode
- Season 7 Is Organic Really Better? Healthy Food or Trendy Scam?
- Season 7 Building a Mars Base Is a Horrible Idea: Let’s Do It!
- Season 7 Loneliness
- Season 7 The Origin of Consciousness — How Unaware Things Became Aware
- Season 7 What If We Detonated All Nuclear Bombs at Once?
- Season 7 The Most Dangerous Stuff in the Universe — Strange Stars Explained
- Season 7 The Side Effects of Vaccines — How High Is the Risk?
- Season 7 Is the EU Democratic? Does Your Vote Matter?
- Season 7 Is Meat Bad for You? Is Meat Unhealthy?
- Season 7 Could Your Phone Hurt You? Electromagnetic Pollution
- Season 7 Tiny Bombs in Your Blood — The Complement System
- Season 7 The World War of the Ants — The Army Ant
- Season 7 The Egg — A Short Story
- Season 7 What’s Hiding at the Most Solitary Place on Earth? The Deep Sea
- Season 7 The Billion Ant Mega Colony and the Biggest War on Earth
- Season 7 What If We Nuke a City?
- Season 7 Neutron Stars — The Most Extreme Things That Are Not Black Holes
- Season 7 1,000 km Cable to the Stars — The Skyhook
- Season 7 An Antidote to Dissatisfaction
- Season 7 Overpopulation & Africa
- Season 7 How to Move the Sun: Stellar Engines
Kurzgesagt - In a Nutshell - Season 7 Episode 21 How to Move the Sun: Stellar Engines
8.30 10 minutes 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 an orbit every 230 million years. This dance is not an orderly ballet - more like a skating rink filled with drunk toddlers. This chaos makes the galaxy dangerous. Our solar neighbourhood is constantly changing, with stars moving hundreds of kilometers every second. Only the vast distances between objects protect us from the dangers out there. But we might get unlucky in the future. At some point we could encounter a star going supernova. Or a massive object passing by and showering earth with asteroids. If something like this were to happen we would likely know thousands, if not millions of years in advance. But we still couldn’t do much about it. Unless… we move our whole solar system out of the way.
