Several research projects are underway to work out just how we will be able to reproduce in the special, unnatural conditions of space. A British physicist Stephen Hawking said in a talk to NASA some times ago: “Spreading out into space will completely change the future of the human race and maybe determine whether we have any future at all.” To guarantee the survival of humanity, we need to colonize other planets. But more serious is the fact that fertilization and embryo implantation has evolved here on Earth: Getting it to work in space is a major problem.