. "Discusses the various planets, moons, constellations, solar systems, and galaxies that make up the universe and some of the instruments used to explore it."@en . "Discusses the various planets, moons, constellations, solar systems, and galaxies that make up the universe and some of the instruments used to explore it." . . . . "The universe"@en . . "The universe" . . "Juvenile works"@en . "Juvenile works" . . . . .