Astronauts takes an in-depth look at the people who fly into space. Readers will learn about the history of space exploration, how astronauts live and work in space, and the amazing machines that launch people into space and return them safely to Earth. Features include a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Early Encyclopedias is an imprint of Abdo Reference, a division of ABDO.