LogFAQs > #948909770

8 for several reasons. The first is in order to explore other worlds since it would be easier for us to step from the Moon or Mars than Earth (in other words, take less time and effort). The second is that it would give Earth a chance to recover from the ravages of what humans have done to it over the centuries (like burning fossil fuels, etc.). A third would be the technological leaps needed to start and keep such a base running, which would trickle down into the economy such as like those from Nasa's moon shots (cell phones, computers, etc.)