Graphene has long-been touted as a miracle substance, one which -- if we master it -- we could use to construct almost anything our imaginations can conceive, from quantum computers to space elevators. The problem, though, is mastering it, because that means first understanding it -- and it looks like we've just discovered another thing about graphene we didn't really expect: It can heal itself if it gets damaged.   By: Ian Steadman, Edited by: Nate Lanxon Continue reading... - daniel