. . "Mars (Planet)" . . "Mars"@en . "Mars" . "Learn about the fourth planet from the sun with facts like what makes it so red! Complete with striking images and diagrams to assist with visual learning, a table of contents, glossary, index, and More Facts section."@en . "Simple text and photographs describe the planet Mars." . "Simple text and photographs describe the planet Mars."@en . . "Electronic books"@en . . . . "Juvenile works"@en . "Juvenile works" . . . . . "Solar system" . . "Solar system." .