(Description) Figure 26 Image of the Tsiolkovskiy crater. Look carefully at the boundary between the dark mare and the rugged highlands. The area shown is about 200 km across.

Week 5: What we learned from the Moon

View all sections of the document

Image of the Tsiolkovskiy crater. Look carefully at the boundary between the dark mare and the rugged highlands. The area shown is about 200 km across.