Welcome to the Neighbourhood The universe is vast. Are you inside a building? Walk outside for a moment. Look up at the sky. Smell the fresh air. Jump into that air. Don’t come down yet. Keep travelling up until you are about 600 kilometres above the ground. Stop and take a look around. In front of you is a wall of oceans, land and clouds. Stretch your view up further and you can make out where the clouds and oceans give way to the blackness of space.