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 ...

A new international study warns that reproductive health in space is no longer a theoretical concern and that questions about fertility and pregnancy should be pressing concerns. As commercial ...

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 ...