This edition reviews the results of Apollos 11, 12, 14, and 15. Included are approximately sixty new pages of text and forty new photographs and pictures. Thoma

The Moon held little interest for most scientists after its basic astronomic properties had been determined and before direct exploration appeared likely. Specu

The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technic

When human exploration of the lunar surface began in 1969, it marked not only an unprecedented technological achievement but also the culmination of scientific