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| | == Criticism of the Giant-Impact Model == | | == Criticism of the Giant-Impact Model == |
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| − | This new theory fail lacks testability and falsifiability, which are essential aspects of science as explained by [[Karl Popper]]. Scientists did find that none of three proposed tests are "supportive of the Giant Impact model."<ref>http://www.lpi.usra.edu/meetings/origin98/pdf/4045.pdf</ref> | + | This new theory fail lacks testability and falsifiability, which are essential aspects of science as explained by [[Karl Popper]]. |
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| − | But nearly two decades later, ''Scientific American'' observed that:<ref>http://www.sciam.com/article.cfm?chanID=sa006&colID=5&articleID=000A90B0-C919-1C6E-84A9809EC588EF21</ref>
| + | Scientists did find that none of three proposed tests are "supportive of the Giant Impact model."<ref>http://www.lpi.usra.edu/meetings/origin98/pdf/4045.pdf</ref> |
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| | + | Another article noted that the Moon is lacking in siderophilic elements (Au, Co, Fe, Ir, Mn, Mo, Ni, Os, Pd, Pt, Re, Rh, Ru) found on Earth, and this indicates that the Moon was not formed by materials broken off of Earth.<ref>http://www.ias.ac.in/jessci/dec2005/ilc-3.pdf</ref> |
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| | + | A third study found that "the bulk composition of the Moon differs significantly from that of the terrestrial mantle" and that "[t]he high |
| | + | bulk FeO content of the Moon rules out the derivation of the proto-lunar material from any but a small fraction of the terrestrial mantle."<ref>http://www.lpi.usra.edu/meetings/lpsc97/pdf/1070.PDF</ref> |
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| | + | Nearly two decades after the Giant-Impact Model was embraced at the Hawaii convention, ''Scientific American'' observed that:<ref>http://www.sciam.com/article.cfm?chanID=sa006&colID=5&articleID=000A90B0-C919-1C6E-84A9809EC588EF21</ref> |
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| | :Unfortunately, researchers have had trouble getting the giant-impact model to work without the contrivances that scuttled earlier theories. | | :Unfortunately, researchers have had trouble getting the giant-impact model to work without the contrivances that scuttled earlier theories. |
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| | :Considering all the twists and turns in lunar science, nobody claims that the models are complete just yet. | | :Considering all the twists and turns in lunar science, nobody claims that the models are complete just yet. |
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| | == Reference == | | == Reference == |
| | <references/> | | <references/> |