Geology Reference
In-Depth Information
Figure 4.4. An image of the lunar far side obtained by the Soviet
spacecraft Zond 8, showing the general lack of mare regions. Crater
Aitken, near the middle of the image, is about 135 km in diameter
and its
floor is partly
flooded with mare lavas.
Figure 4.2. Sketches of the Moon prepared by Galileo Galilei and
published in 1610.
Figure 4.3. A map of the Moon prepared by Johannes
Hevelius in 1647; improvements in the telescope enabled
fairly accurate portrayal of surface features. Overlapping
disks show that more than half of the Moon can be seen
from Earth due to the Moon
'
s libration.
