mirror: 初始快照
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<html >
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<title >Moon</title>
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<body >
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<mbp:pagebreak/>
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<tei-ms:entry>
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<tei-ms:orth><h1 align="center" >Moon</h1></tei-ms:orth>
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</tei-ms:entry>
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<br />
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<div align="center" title="The only object apart from Earth mankind ever stood on."><img src="moon.jpg" /></div>
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<p ><b class="first" >A</b> lthough most known planets have many moons or
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satellites, the <a href="earth.htm">Earth</a>’s own Moon has been studied in the most detail with his
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close proximity. The Moon is one-fourth the size of <a href="earth.htm"> Earth</a> and so the pull of
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gravity on the lunar surface is approximately one-sixth of that on <a href="earth.htm">Earth</a>.</p>
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<p >Recent expeditions, mainly by the satellite Clementine have led to the
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discovery of a frozen ice formations at the poles of the Moon; however, the Moon
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does not have free water nor an atmosphere, which causes a static state of
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weather.</p>
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<p >Revolving about the <a href="earth.htm"> Earth</a> approximately every 27 days, the Moon is 384,403 km
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(238,857 mi).</p>
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<p >While the origin of our companion Moon remains in debate, the most probably
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theory of formation is the planetesimal impact. Stated within this theory is
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that the Moon originally grew from the dust particles of an original nebulae
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that formed the <a href="earth.htm"> Earth</a> and the rest of the Solar System.</p>
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<p >As the <a href="earth.htm"> Earth</a> had begun its first rotations, the Moon spun off and because of
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its smaller mass, it was grabbed by gravitation into eternal revolution about
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the <a href="earth.htm">Earth</a>. This theory has been repeatedly been proven by the similarity between
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the densities of the <a href="earth.htm">Earth</a>’s upper crust rocks and Moon rocks.</p>
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<p >Still, with NASA budget cuts, missions to our closest neighbor have become
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rare, leaving many Moon colonization plans to be canceled.</p>
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</body>
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</html>
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