Add Yahoo as a preferred source to see more of our stories on Google. Scientists reveal potential hurdles for extraterrestrial human reproduction. Here, sunlight illuminates the lower right of planet ...

Researchers should urgently think about how humans can reproduce in space, experts have said. As humanity looks towards living beyond Earth, we need to understand how human reproduction will actually ...

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.