The origin of the Moon remains an unsolved problem of the planetary science. Researchers
engaged in celestial dynamics geophysics and geochemistry are still discussing various models
of creation of our closest cosmic neighbour. The most popular scenario the impact hypothesis
involving a collision early in the Earth's history has been substantially challenged by the
new data. The birth and development of a planet-moon system always play a role in the formation
of an entire planetary system around our Sun or around another star. This way the story of our
Moon acquires broader ramifications for one of the hottest topics of the modern scholarship.
All this has motivated the authors of this book to present and compare the currently discussed
theories and to analyze their advantages and shortcomings in explaining the experimental data.
