c Robert Zubrin, a rocket scientist, thinkshumans should colonize space. He wantsto start with Mars. Why? He thinks sendingpeople to Mars will allow us to learn a lot ofthings---for example, the ability of humansto live in a very different environment.Eventually, we could create new humansocieties on other planets. In addition, anyadvances we make in the fields of science,technology, medicine, and health will benefitpeople here on Earth.