Roving Mars: Pathfinder, Spirit, Opportunity, Curiosity - Chapters

MarsLowell (1905)• Mars is the fourth planetfrom the Sun (1.6 AU)• It is a rocky planet with athin atmosphere (radius is~1/2 that of Earth, gravity0.37 g)• Called the "Red Planet"because of iron oxide (rust)on its surface• Diverse surface features =active geology (impactcraters, volcanoes, valleys,deserts, polar ice caps)Huygens (1659)Hubble SpaceTelescope(1997)Dr. Barbara Cohen, HAL-5 Lecture 2