What makes a planet a dwarf planet? How many miles are in a light-year? What exactly is a quasar? ‘The Astronomy Puzzle Book’ is packed with over 100 questions which have been inspired by the Royal Observatory’s history and collections. Delving deep into the darkest corners of space, your general knowledge and problem-solving skills will be put the test.Inside this book, you will find astronomical instruments, star charts, clocks, famous astronomers and much more. As you solve the puzzles and complete your mission, you will be exploring some of the latest astronomical theories and achievements in space exploration.Space has the power to inspire and fascinate all of us on Earth and the history of astronomy has been one of solving puzzles. Now it’s your turn.