Mars: uncovering the secrets of the red planet
Sciences et technologies
Audio avec voix humaine
Résumé
A National Geographic chronicle of Mars exploration. Focuses on the Viking missions of the 1970s, whose primary goal was the search for life, and on the July 4, 1997 Pathfinder landing on Mars's surface. Explains the design, engineering, and results… of the projects. Discusses plans for future missions. Senior High and older readers. 1998.