As commercial spaceflight draws ever closer and time spent in space continues to extend, the question of reproductive health beyond the bounds of planet Earth is no longer theoretical but now ...

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.

In October of last year, Jeff Bezos told a crowd in a sizable conference room in Turin that millions of people would live in space in a few decades. Not as a ...