Scientists are getting closer to the possibility of making a new person from skin or blood cells, without the need for sex. This approach goes well beyond in vitro fertilization — which combines egg and sperm in a test tube — because it doesn't require natural eggs or sperm. Called in vitro gametogenesis, or IVG, it promises to someday provide a cure for many types of infertility, to slow or even turn off biological clocks, and to enable the kind of embryo selection that sends chills up many spines. Visit the link in bio to learn more about the research.