“The earth, from here, is like heaven. It flows with colour. A burst of hopeful colour. When we’re on that planet we look up and think heaven is elsewhere, but here is what the astronauts and cosmonauts sometimes think: maybe all of us born to it have already died and are in an afterlife. If we must go to an improbable, hard-to-believe-in place when we die, that glassy, distant orb with its beautiful lonely light shows could well be it.”