by Ariel N. Deutsch (Author), Emilia Ib??ez Lissen (Illustrator)

Blast off to Mercury alongside space explorers Melvin and Sally! Our trusty alien guide, Zero, tours us around the innermost planet to learn about the exciting formation and geologic evolution of Mercury. The concepts explained in this book derive from knowledge we learned from NASA's MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft. Prepare for takeoff!