Season
Season 13 Episode
- Season 8 Milk. White Poison or Healthy Drink?
- Season 8 How to Make a Kurzgesagt Video in 1200 Hours
- Season 8 Why Blue Whales Don't Get Cancer - Peto's Paradox
- Season 8 The Coronavirus Explained & What You Should Do
- Season 8 Why Are You Alive – Life, Energy & ATP
- Season 8 The Past We Can Never Return To – The Anthropocene Reviewed
- Season 8 Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections
- Season 8 Who Is Responsible For Climate Change? – Who Needs To Fix It?
- Season 8 What Is Intelligence? Where Does it Begin?
- Season 8 What Do Alien Civilizations Look Like? The Kardashev Scale
- Season 8 Unlimited Resources From Space – Asteroid Mining
- Season 8 The Warrior Kingdoms of the Weaver Ant
- Season 8 The Largest Star in the Universe – Size Comparison
- Season 8 Is It Too Late To Stop Climate Change? Well, it's Complicated.
- Season 8 When Time Became History - The Human Era
- Season 8 Geoengineering: A Horrible Idea We Might Have to Do
- Season 8 How Large Can a Bacteria get? Life & Size 3
- Season 8 What If Earth got Kicked Out of the Solar System? Rogue Earth
- Season 8 Can You Upload Your Mind & Live Forever?
- Season 8 What if We Nuke the Moon?
Kurzgesagt - In a Nutshell - Season 8 Episode 10 What Do Alien Civilizations Look Like? The Kardashev Scale
8.30 10 minutes The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there.
