Kurzgesagt - In a Nutshell - Season 7 Episode 18 1,000 km Cable to the Stars — The Skyhook
8.6010 minutes
Getting to space is incredibly hard, expensive and needs a lot of resources. A more efficient way to get there is a Skyhook (or Spacetether), an ever rotating cable with a counter weight, that catapults spaceships from earth orbit into the depths of space.