Establishing colonies on the moon will require a means to fabricate spare parts for repair or replacement. One Austrian company is already 3-D printing ceramic nuts and bolts out of simulated moon dust.
Read MorePlanning on watching the eclipse? Learn how it might affect the grid—plus some interesting geeky trivia to share with and impress your fellow eclipse watchers.
Read MoreOther materials stories that may be of interest for June 3, 2014.
Read More