Ron Miller 
Mars [PDF ebook] 

Known as the red planet, Mars is the closest planet to the sun. Easily seen from Earth, Mars has intrigued thousands of people throughout history. Many have wondered whether the planet could be inhabited by forms of life; many have dreamed of exploring the planet. Several successful space projects have revealed interesting facts about the history, make-up, and geology of Mars. Although much has been discovered, mysteries surrounding Mars and its moons remain.