The optical revolution in communication is taking place, literally, right now, within your home. Where only 200 years ago it once took weeks to transmit information in letters carried by foot, horse, or boat the new transit of information takes place at the speed of light using lasers propagating down shards of glass. This tremendous increase in the speed of information transfer takes place due to the merging of two sciences: optical physics and materials science - understanding the nature of how light works and the discovery and perfection of glass fiber optics. We will explore the developments in these two branches of science that have merged at this historical moment. This is the last presentation in this year's Science on Saturday lecture series. The series is co-hosted by LLNL's Science & Technology Education Program and Sigma Xi.