| A crater chain
inside a large lunar crater, some 200 miles (300km) southwest of Tsiolkovsky
crater. Most crater chains form from streams of ejected blocky debris thrown
out during a crater impact that fall back onto the lunar surface some distance
from the original crater. Ejected debris striking the ground at a shallow
angle produces elongated craters. Individual craters in a chain may sometimes
overlap as is seen in this photo. (Apollo 15 Metric camera stereo photo
AS15-M3-1856 & 1857, orbit 50) |
