As commercial spaceflight draws ever closer and time spent in space continues to extend, the question of reproductive health beyond the bounds of planet Earth is no longer theoretical but now ...

As plans for long-term missions to the Moon and Mars move forward, scientists are studying whether humans reproduce beyond Earth.

Humans don’t have a defined mating season like deer or wolves. Here’s how evolution rewired our reproduction by blending biology, culture and social life into year-round intimacy. Unlike the rut of ...