As humanity moves from brief space missions toward longer stays — driven by commercial ambitions for moon bases and eventual Martian settlements — scientists are beginning to confront how the ...

Human reproductive cloning is currently the subject of much debate around the world, involving a variety of ethical, religious, societal, scientific, and medical issues. This report from the National ...

While new Republican-led proposed legislation is trying to direct federal funds to "restorative reproductive medicine" -- a so-called "alternative" to fertility treatments like in vitro fertilization ...