Describes the characteristics of Mars and its moons, examines old beliefs and new discoveries about the planet, and includes photographs sent back by unmanned spaceships.
Presents a pictorial tour of the planet Mars, tracing the planet's history, citing new discoveries, and discussing NASA's investigations of the planet as a possible living world.
Describes the planet Mars by including information gained by three probes and a space rover which provides more details about the terrain of Mars. A plan is being developed for sending astronauts to Mars in 2030.