Do you know how many planets there are in our galaxy? Do you know what a galaxy is? If not, let's explore this vast space and discover the amazing secrets of planets, satellites, stars and other space objects. With the Augmented Reality technology in this book, you can observe the contents of space up close. Also listen to the songs that you can find in the app, yes! Ask your parents to download the DEVAR grati s app, activate the book, and enjoy the thrill of exploring space while singing along!