This article examines the reinvigoration of outer space imaginaries in the era of global environmental change, and the impacts of these imaginaries on Earth. Privatized space research mobilizes fears of ecological, political, or economic catastrophe to garner support for new utopian futures, or the search for Earth 2.0. These imaginaries reflect dominant global discourses about environmental and social issues, and enable the flow of earthly resources toward an extraterrestrial frontier. In contrast, eco-centric visions emerging from Gaia theory or feminist science fiction project post-earthly life in terms that are ecological, engaged in multispecies relations and ethics, and anticapitalist. In these imaginaries, rather than centering humans as would-be destroyers or saviors of Earth, our species becomes merely instrumental in launching life—a multispecies process—off the planet, a new development in deep evolutionary time. This article traces these two imaginaries and how they are reshaping material and political earthly life.