While space agencies are making significant preparations for long-term missions to the Moon and Mars, a fundamental human ...

As a quartet of astronauts make their way to the far side of the Moon, far-fetched notions of human colonies on the satellite or even Mars - a three-year return trip - are again getting an airing.

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

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Humans don’t have a defined mating season like deer or wolves. Here’s how evolution rewired ...