How did scientists learn about the universe and its cosmic secrets? How did the first human land on moon? What was the name of the first man-made satellite? This encyclopedia will answer these and more hows and whats for you. Learning is made simpler with well-labelled diagrams and an extensive glossary of difficult words. Bonus: the book comes loaded with Isnt It Amazing--a section of fun facts to keep you glued for more. --Back cover.
