We are not alone in the universe. A few years ago, this notion seemed far fetched; today, the existence of extraterrestrial intelligence is taken for granted by most scientists. Even the staid National Academy of Sciences has gone on record that contact with other civilizations "is no longer something beyond our dreams but a natural event in the history of mankind that will perhaps occur in the lifetime of many of us." So, how do we communicate? Where are these aliens? Should we me making better attempts at communication; or is it dangerous to do so? Tonight, we will talk about communication.