Home Science Astronomy Introduction to Astronomy ScienceAstronomy Introduction to Astronomy Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" By Watch and Study - Feb 18, 2016 250 RELATED ARTICLESMORE FROM AUTHOR Physics Epic Space Rescues ft. BrainCraft Astronomy Space Elevators Astronomy Tractor Beams: Almost Real! Astronomy Football Disease, Moon Base Dreams, and the Deepest Vents Ever! Astronomy A Brief History of the Universe: Astronomy #44 Tell us what you think!