Elon Musk plans to build a sustainable colony on Mars, a city of a million people. The first spaceships are to leave for the red planet in 2022. And his ambition doesn’t stop there. He sees humans turned into a multi-planetary species. At the International Astronautical Congress, Elon Musk presents the next-generation spaceship – a rocket bigger than an A380 plane. Work on the new rocket has already began.