Space exploration is one of humanity's most incredible accomplishments. In just a few decades, people went from dreaming about space to actually exploring it. Space technology has helped us explore other planets and learn more about our own. This book provides readers with a before-and-after look at the way the world has changed. Each book in the NGSS-aligned It Changed the World series introduces readers to some amazing inventions. Interesting facts and vivid photos show how these inventions changed, and continue to change, the lives of people around the world. Each book includes a glossary, comprehension questions, and an extension activity for further learning.