Description Are you ready to take an amazing journey through the universe? Step into space with the incredible Britannica Encyclopedia, the world's most recognized and thorough encyclopedia. Did you know that the universe was born 13.8 billion years ago? And that there are believed to be 100 billion galaxies? And that there have been more than 4,000 extrasolar planets found? You will discover that our Earth moves at millions of kilometers per hour, you will navigate between stars (which are actually balls of fire), and you will explore the limits of the universe... if there are any! It includes novelties, interesting facts, shocking images, explanatory illustrations, and statements by the most famous experts in the world, so you can learn everything about space. There are infinite things to learn! 3, 2, 1... take off!