3D printing is one of the biggest buzz terms on internet these days. A quick Google search will begin to unravel a long string of items currently being 3D printed from a variety of materials including food. In fact, NASA wants to build a 3D printed base on the moon! But is all of this realistic? What is the truth behind 3D printing? Join us in this episode of the Learner's Guide to the Galaxy as we explore the topic of 3D printing.