Human space exploration.-- - 64 p. : col. ill. 25 cm. -- (Explore the solar system) ISBN: 978-0-7166-9543-1 Subjects--Topical Terms: Outer space--Exploration--Juvenile literature.Space probes--Juvenile literature.Manned space flight--Juvenile literature. Dewey Class. No.: 629.45 H88 c2011.