1. MarsOrbit: 687 earth days Rotation: 24.5 hours Surface T: -1400 C (polar winter) to 200 C (equator) Atmosphere: 96% CO2

2. Mars OrbitersGlobal SurveyorMars Climate OrbiterMars ObserverMars Reconnaissance Orbiter (MRO)Nozomi (Japan) 3. Mars Landers/RoversSojournerViking Spirit & OpportunityPhoenix Lander 4. VolcanoesVolcanoes are widely distributed across the surface of Mars. Composite, shield, and calderatype volcanoes are all common. 5. Shield Volcanoes 6. Olympus MonsOlympus Mons is the tallest volcano on Mars, with a base that would cover the state of Utah. 7. Calderas 8. Collapsed Lava Tubes 9. Rift Basins 10. Valles Marinaris 11. Thrust Belts 12. Evidence for Hydrologic System Evidence is abundant for a significant hydrologic system in the pa Drainage networks Headward erosion Springs Concretions Karst Braided and meandering fluvial systems Cross-bedding Alluvial fans Deltas Eolian dunes Glaciers Patterned ground Mass wasting Ocean basins Oxidized sediment 13. Drainage NetworksWell-developed dendritic drainage networks are widespread on M 14. Headward Erosion 15. Sapping (springs) 16. Concretions 17. Karst 18. Braided River Deposits 19. Meandering River Deposits 20. Entrenched Meanders 21. Cross-bedding 22. Alluvial Fans 23. Deltas 24. Bajadas 25. Eolian SystemsThe Martian atmosphere is thin but very active, resulting in welldeveloped eolian systems, including barchan, barchanoid, transverse, longitudinal, and star forms. 26. Barchan Dunes 27. Barchanoid Dunes 28. Transverse Dunes 29. Longitudinal Dunes 30. Star Dunes 31. Dust Devil Tracks 32. Mass WastingMass-wasting, in the form of falls, slumps, and flows are all common on the surface of Mars. 33. Rock Falls/Avalanches 34. Slump s 35. Mud Flows 36. Ocean Basins 37. Glaciers 38. Patterned Ground 39. Weathering 40. Geologic Map 41. Geologic Time Scale 42. What is it? 43. Enhanced Image 44. New Interpretation