A new experiment showed that humans may be able to reproduce in space, paving the way for self-sustaining colonies.

Sperm may lose their ability to navigate in microgravity, raising new questions about whether human reproduction is possible in space.

Sperm struggles to find its way to an egg in microgravity, suggesting mammalian reproduction in space may not be possible.

The central premise of the blockbuster film “Project Hail Mary” is a long-shot mission with a familiar goal: Save humanity ...

Being able to reproduce both sexually and asexually gives the dragons an evolutionary edge, Garcia says. If no mate is handy, a female can bear sons parthenogenetically—and when they’re older, they ...