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A history of modern selenogony: Theoretical origins of the Moon,from capture to crash 1955–1984
Authors:Stephen G Brush
Institution:(1) Department of History and Institute for Physical Science and Technology, University of Maryland, 20742 College Park, Maryland, USA
Abstract:The development of ideas about the origin of the Moon during the last three decades is reviewed. In the 1950s G. H. Darwin's fission theory was still occasionally mentioned but by the 1960s it had been displaced by the hypothesis of lunar capture. A few scientists favored formation of the Moon from particles in orbit around the growing Earth. Analysis of samples from the Apollo missions did not confirm any of the three theories of lunar origin. Eventually the giant impact theory, proposed by Hartmann and Davis (1974) and by Cameron and Ward (1975), was adopted as the best working hypothesis. But the problem is not yet satisfactorily solved and work continues on other hypotheses such as co-accretion.
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