Volume 60 of Reviews in Mineralogy and Geochemistry assesses the current state of knowledge of
lunar geoscience given the data sets provided by missions of the 1990's and lists remaining
key questions as well as new ones for future exploration to address. It documents how a planet
or moon other than the world on which we live can be studied and understood in light of
integrated suites of specific kinds of information. The Moon is the only body other than Earth
for which we have material samples of known geologic context for study. This volume seeks to
show how the different kinds of information gained about the Moon relate to each other and also
to learn from this experience thus allowing more efficient planning for the exploration of
other worlds.