"The Apollo 10 mission was a vital step toward the national goal of landing men on the Moon and returning them safely to Earth. This mission used the first complete Apollo spacecraft flown in lunar orbit and took men closer to the Moon than ever before. Each Apollo lunar mission acquires photographs of areas on the Moon never before seen in such great detail. This report provides only a small sample of the types of analysis that can be performed with this photography. Even more important, however, this report provides scientists throughout the world with a knowledge of what new lunar photography is available and how the photograph can be obtained. It is hoped that more extensive analysis of this photography will continue..."--p. iii.