If you could send a message to an extraterrestrial, what would it say? What language would you use? How would you deliver it? These are all great questions and ones that we discuss in this  fun and informative chat with  Julia Brodsky, STEM Education lead at Blue Marble Initiative and former NASA Astronaut instructor, as she helps us to consider some things that we might think about IF we were ever to converse with an extraterrestrial.