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

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

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.

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

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 ...

New research reveals that getting pregnant in space would be a very difficult task. Research carried out by the University of Adelaide reveals that sperm lose direction in microgravity, reducing ...