From the first artificial satellite, Sputnik, to the cutting-edge technology of today's Mars rovers, this volume explores the history of unmanned space exploration. Readers discover how these fascinating machines orbit our planet and beyond, collecting invaluable data and imagery...
From the first artificial satellite, Sputnik, to the cutting-edge technology of today's Mars rovers, this volume explores the history of unmanned space exploration. Readers discover how these fascinating machines orbit our planet and beyond, collecting invaluable data and imagery...