'Swarmie' Space Robots Forage Like Ants

The absolute least efficient way to get air, water and fuel into space is the way that we currently do it: by packing as much of it as we can into rockets on Earth, and then firing it off into orbit. If this is how we have to get supplies to the moon, or Mars, it's going to be ludicrously expensive and time-consuming.

http://news.discovery.com