New Delhi: Sustaining human life in space is a question that has long occupied researchers. Now in an attempt to find out if human reproduction can occur in zero gravity, China has sent artificial ...
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.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results