Space Scientistsexamines the human explorers who are uncovering new information about space, whether they launch into space themselves or explore the cosmos through telescopes and sophisticated scientific instruments. Features include vivid photos, in-depth examinations of scientific concepts, a glossary, additional resources, source notes, and an index. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.