Lunar highlands

Lunar highlands

. The heavily cratered lunar highlands are shown in this picture of the southern hemisphere of the Moon’s near side. Humboldt crater is near the center of the image and Smyth’s Sea is to the right. Impact craters of all sizes, including giant impact basins measuring hundreds of kilometers across, were formed during an intense bombardment of the Moon about 3.9 billion years ago. This image was obtained during the Apollo 15 mission in August 1971. (Courtesy of NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University