{"authors":[],"components":[{"id":"root","name":"root","payload":{"cid":"bafybeic42mbirqi6pdhaghpowwcp3ogjc77jmu5omqymxia3hcngyvhjdu","path":"root"},"type":{".pdf":"pdf"}}],"defaultLicense":"CC BY","description":"Three principal concepts regarding lunar formation have been examined: the accretion hypothesis, the mega-impact theory, and the multi-impact model. The multi-impact model amalgamates the salient facets of the megaimpact theory and the accretion hypothesis. As per this model, fragments of the terrestrial crust are ejected into space during collisions with numerous planetesimals (proto-asteroids) with diameters around 10-100 kilometers. In the vicinity of Earth’s orbit, this ejecta interacts with the accretion disk, augmenting its mass. Numerical computations demonstrate that particles within the prograde-rotating accretion disk effectively capture prograderotating ejecta while shedding retrograde-rotating ejecta onto the planetary body. The multi-impact theory provides an explanation for the creation of not just the Moon and Charon but also the satellites of asteroids. Several predictions regarding the parameters of asteroid satellites posited by this theory have already been validated through statistical analysis of binary asteroids. Geomorphological structures in the lunar polar regions (smoothed craters, landslides, regular patterns) suggest the presence of a substantial permafrost layer with an approximate thickness of a kilometer.","dpid":{"id":"211","prefix":"beta"},"researchFields":[],"title":"Origin of the Moon and Lunar Water","version":"desci-nodes-0.2.0"}