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→Hypothesis 1: Fission: some minor stylistic changes
===Hypothesis 1: Fission===
===Hypothesis 1: Fission===
Developed in 1878, this hypothesis by [[George Howard Darwin]] (son of [[Charles Darwin]]) states that the Moon had been a part of a rapidly spinning [[Earth]]. This rapid spin, as well as the Sun's gravitational influence, led to a piece of the Earth breaking free and forming the Moon. Osmond Fisher added that the Pacific ocean basin is actually the scar of this process.<ref name="Nova1">PBS NOVA: "To the Moon - Origins" [http://www.pbs.org/wgbh/nova/tothemoon/origins.html (Page 1)]</ref>
Developed in 1878, this hypothesis by [[George Howard Darwin]] (son of [[Charles Darwin]]) argued that the Moon had been a part of a rapidly spinning [[Earth]]. This rapid spin, enhanced by the Sun's gravitational influence, led to a piece of the Earth breaking free and forming the Moon. Osmond Fisher held that the Pacific ocean basin is actually the scar of this process.<ref name="Nova1">PBS NOVA: "To the Moon - Origins" [http://www.pbs.org/wgbh/nova/tothemoon/origins.html (Page 1)]</ref>
===Hypothesis 2: Capture===
===Hypothesis 2: Capture===