DK 
Space A Children’s Encyclopedia [PDF ebook] 

Everything you ever wanted to know about space in e-book format Take your child on a journey to space and beyond, they’ll learn what space is and take a whirl around the sun, moon and stars.Packed with never-seen-before images from the International Space Archive and out-of-this-world pictures from NASA missions, they’ll explore our universe as never before. Exclusive interviews, eyewitness accounts, incredible facts and more will teach them everything they need to know.It’s an incredible look at the universe in which we live — perfect for space enthusiasts and budding astronomers.