The Astronomy Book simplifies complex topics about planets, stars, and black holes, making it accessible for beginners and a great refresher for experts. Part of the Big Ideas series, it covers over 100 key astronomical theories and discoveries with easy-to-follow text and eye-catching graphics. Perfect for anyone curious about space, it includes facts, charts, and timelines, plus biographies of key astronomers like Ptolemy, Copernicus, Galileo, and Hawking. The book offers a clear introduction to the universe and its mysteries.