The colonization of outer space, especially Mars, has become increasingly relevant in recent years. With technological advances and biological discoveries, Mars is perceived as more hospitable to life than previously imagined. Just recently, the Mars Odyssey spacecraft has discovered vast quantities of ice on Mars.¹ As a result, long-term projects like the colonization, or even terraformation, of Mars are becoming less daunting.²

This Dialogue addresses novel concerns of environmental ethics and safety as humans begin their expansion beyond earth. The Dialogue then presents an argument for the terraforming of Mars. It is inevitable that humans will live on other moons or planets; it is only a matter of when.