2,732
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: − All the prevailing, well-accepted theories of the origin of the Moon were completely disproven by the lunar landings and studies of the lunar rocks afterwards. The material, to the surprise of scientists, lacked iron that permeates the Earth's crust.+ Line 11:
Line 11: + + Line 42:
Line 44: − +
no edit summary
Scientists now explain the creation of the moon by the "Giant-Impact Model," explained below. This theory emerged after the Lunar landings disproved previous theories of the moon's creation, that relied upon the assumption that the moon "came," largely, from the earth. The material, to the surprise of scientists, lacked iron that permeates the Earth's crust.
Specifically, each of these prevailing scientific theories were disproven by the lunar landings:<ref name="PSI">Planetary Science Institute: [http://www.psi.edu/projects/moon/moon.html The Origin of the Moon]</ref>
Specifically, each of these prevailing scientific theories were disproven by the lunar landings:<ref name="PSI">Planetary Science Institute: [http://www.psi.edu/projects/moon/moon.html The Origin of the Moon]</ref>
*The Earth was originally spinning so fast that it spun off a fragment of lower density (iron-poor) material which became the Moon.
*The Earth was originally spinning so fast that it spun off a fragment of lower density (iron-poor) material which became the Moon.
**This solves the isotopic similarity and the relative lack of iron, but an analysis of the total angular momentum and energy involved ruled out this possibility.
**This solves the isotopic similarity and the relative lack of iron, but an analysis of the total angular momentum and energy involved ruled out this possibility.
As will be demonstrated, the Giant-Impact Model does away with the need for large amounts of terrestrial material in the moon.
== Giant-Impact Model ==
== Giant-Impact Model ==
: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.
Of course, all of these criticisms are answered by the fact that the moon is composed of mostly extraterrestrial rock from the object that impacted the Earth, creating the moon.<ref>See ''Space Daily'', supra.</ref>
Of course, all of these criticisms are answered by the fact that the moon is composed of mostly extraterrestrial rock from the object that impacted the Earth, creating the moon.<ref>See ''Space Daily'', supra.</ref> It should also be recognized that a theory's imcompleteness is never a full challenge to it. By virtue of the nature of scientific theories, they continue to evolve and "learn" from their mistakes.
== Reference ==
== Reference ==
<references/>
<references/>