For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical integrity." When you purchase through links on our site, we may earn an ...

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 ...