1. Characterize any volcanism
2. Determine the nature and timing of any tectonic activity
3. Determine the history of formation and degradation of impact craters
4. Determine the nature of the surface materials

Galileo Images of Ganymede by Science Objective:

• Global Imaging
  
  
• Craters and Pilimpsests
  
  
• Bright Terrain
  
  
• Dark Terrain
  
  
• Bright/Dark Terrain Transitions
  
  
• Surface Composition Data (NIMS Instrument)
  
  
• Temperature Data (PPR Instrument)
  
  
• Models of the Interior of Ganymede
  
  

Highly Fractured Ganymede

Anatomy of a Torn Comet

• Orbit 1
  
  
• Orbit 2
  
  
• Orbit 6
  
  
• Orbit 7
  
  
• Orbit 8
  
  
• Orbit 10
  
  
• Orbit 14
  
  
• Orbit 28