Forget the sci-fi movies and discover the real thing! Find out what really goes on in this great big universe of ours. Is there life out there? Could humans actually live on the Moon one day? This book takes you on a journey through outer space. Get ready to explore our solar system and take a voyage through the Milky Way and beyond. What is the greenhouse effect and do black holes really exist? Jump on board and find out! Small Planet: Big Universe explores the science of astronomy. It investigates our knowledge of the cosmos, and what we still have to