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The colonization of the Moon is the proposed establishment of permanent human communities or robot industries〔(【引用サイトリンク】title=Japan vs. NASA in the Next Space Race: Lunar Robonauts )〕 on the Moon. Recent indication that water might be present in noteworthy quantities at the lunar poles has renewed interest in the Moon. Polar colonies could also avoid the problem of long lunar nights – about 354 hours, a little more than two weeks – and take advantage of the Sun continuously, at least during the local summer (there is no data for the winter yet).〔(BBC NEWS ''Lunar mountain has eternal light'' )〕 Permanent human habitation on a planetary body other than the Earth is one of science fiction's most prevalent themes. As technology has advanced, and concerns about the future of humanity on Earth have increased, the argument that space colonization is an achievable and worthwhile goal has gained momentum.〔(【引用サイトリンク】title=House Science Committee Hearing Charter: Lunar Science & Resources: Future Options )〕〔 Because of its proximity to Earth, the Moon has been seen as the most obvious natural expansion after Earth. There are also various projects in near future by space tourism startup companies for tourism on the Moon. == Proposals == The notion of siting a colony on the Moon originated before the Space Age. In 1638 Bishop John Wilkins wrote ''A Discourse Concerning a New World and Another Planet,'' in which he predicted a human colony on the Moon. Konstantin Tsiolkovsky (1857–1935), among others, also suggested such a step. From the 1950s onwards, a number of concepts and designs have been suggested by scientists, engineers and others. In 1954, science-fiction author Arthur C. Clarke proposed a lunar base of inflatable modules covered in lunar dust for insulation.〔 In 1959, John S. Rinehart suggested that the safest design would be a structure that could "() in a stationary ocean of dust", since there were, at the time this concept was outlined, theories that there could be mile-deep dust oceans on the Moon.〔(Altair VI: Rinehart's floating moonbase (1959) )〕 The proposed design consisted of a half-cylinder with half-domes at both ends, with a micrometeoroid shield placed above the base. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Colonization of the Moon」の詳細全文を読む スポンサード リンク
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