Bounty Hunting: the Human Expansion
Being Mercury’s next door neighbor it only made sense that it would become the production capitol of the galaxy. With large enclosed factories connected by a tunnel system there was no need to waste money on terraforming the planet especially with the difficulty they would have as it is too close to the sun. So in turn water would be evaporating to fast to be replaced. The planets main export is now all types of spaceships headed to Earth for sale.