Humans living in space for months, years, or even generations will need to navigate sex in a zero-gravity world.

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

Floating in near-weightless conditions can be disorienting for even the most experienced astronauts. Male reproductive cells—sperm—also seem to get confused in simulated microgravity, which has ...

Could humanity ever truly thrive on another planet? Researchers at Adelaide University are uncovering surprising biological ...