are theories of fission, capture, co-accretion, and impact.
             The first theory to be introduced was the fission theory. George Darwin first proposed it in 1878 (Editors 22). According to this hypothesis, there was no Moon originally. The Earth was spinning very rapidly - so rapidly, in fact, that one day would have been two hours long. This rapid rotation would have caused bulges at the equator. The Earth's lighter material would have migrated to the equator where the bulges occurred during its fast rotation. Eventually, the sun's constant gravitational pull would have ripped at these bulges, forcing a large chunk of Earth would have split off, or fission, from the main body, as shown in Picture 1 (Editors 22). As the materials that separated were decidedly "
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