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- Giant_impact_hypothesis abstract "The giant impact hypothesis states that the Moon was formed out of the debris left over from an indirect collision between the Earth and an astronomical body the size of Mars, approximately 4.5 Gya (four and a half billion years ago) in the Hadean eon. The colliding body is sometimes called Theia, for the mythical Greek Titan who was the mother of Selene, the goddess of the Moon. An alternative name for the colliding body is Orpheus, for the legendary musician, poet, and prophet in ancient Greek religion and myth.The giant impact hypothesis is currently the favoured scientific hypothesis for the formation of the Moon. Supporting evidence includes: the Earth's spin and Moon's orbit having similar orientations, Moon samples indicating the surface of the Moon was once molten, the Moon's relatively small iron core, lower density compared to the Earth, evidence of similar collisions in other star systems (that result in debris disks), and that giant collisions are consistent with the leading theories of the formation of the solar system. Finally, the stable isotope ratios of lunar and terrestrial rock are identical, implying a common origin.There remain several questions concerning the best current models of the giant impact hypothesis, however. The energy of such a giant impact is predicted to heat Earth to produce a global 'ocean' of magma; yet there is no evidence of the resultant planetary differentiation of the heavier material sinking into Earth's mantle. At present, there is no self-consistent model that starts with the giant impact event and follows the evolution of the debris into a single moon. Other remaining questions include when the Moon lost its share of volatile elements and why Venus, which also experienced giant impacts during its formation, does not host a similar moon.".
- Giant_impact_hypothesis thumbnail Giantimpact.gif?width=300.
- Giant_impact_hypothesis wikiPageExternalLink 2001AGUFM.U51A..02C.
- Giant_impact_hypothesis wikiPageExternalLink nph-bib_query?bibcode=1975Icar...24..504H&db_key=AST&data_type=HTML&format=&high=42c888df4630565.
- Giant_impact_hypothesis wikiPageExternalLink nph-bib_query?bibcode=1976LPI.....7..120C&db_key=AST&data_type=HTML&format=&high=42c888df4613635.
- Giant_impact_hypothesis wikiPageExternalLink 1105.4616.
- Giant_impact_hypothesis wikiPageExternalLink kempler.html.
- Giant_impact_hypothesis wikiPageExternalLink 182768.
- Giant_impact_hypothesis wikiPageExternalLink news.cfm?release=2009-119.
- Giant_impact_hypothesis wikiPageExternalLink moon.html.
- Giant_impact_hypothesis wikiPageExternalLink Archive-Moon.html.
- Giant_impact_hypothesis wikiPageExternalLink OriginEarthMoon.html.
- Giant_impact_hypothesis wikiPageExternalLink impact.htm.
- Giant_impact_hypothesis wikiPageExternalLink camerone.htm.
- Giant_impact_hypothesis wikiPageExternalLink movie.html.
- Giant_impact_hypothesis wikiPageID "51143".
- Giant_impact_hypothesis wikiPageRevisionID "604936425".
- Giant_impact_hypothesis hasPhotoCollection Giant_impact_hypothesis.
- Giant_impact_hypothesis subject Category:Earth_sciences.
- Giant_impact_hypothesis subject Category:Hypothetical_bodies_of_the_Solar_System.
- Giant_impact_hypothesis subject Category:Hypothetical_impact_events.
- Giant_impact_hypothesis subject Category:Hypothetical_planets.
- Giant_impact_hypothesis subject Category:Lunar_science.
- Giant_impact_hypothesis subject Category:Solar_System_dynamic_theories.
- Giant_impact_hypothesis type Abstraction100002137.
- Giant_impact_hypothesis type Cognition100023271.
- Giant_impact_hypothesis type Event100029378.
- Giant_impact_hypothesis type Explanation105793000.
- Giant_impact_hypothesis type HigherCognitiveProcess105770664.
- Giant_impact_hypothesis type ImpactEvents.
- Giant_impact_hypothesis type Process105701363.
- Giant_impact_hypothesis type PsychologicalFeature100023100.
- Giant_impact_hypothesis type SolarSystemDynamicTheories.
- Giant_impact_hypothesis type Theory105989479.
- Giant_impact_hypothesis type Thinking105770926.
- Giant_impact_hypothesis type YagoPermanentlyLocatedEntity.
- Giant_impact_hypothesis comment "The giant impact hypothesis states that the Moon was formed out of the debris left over from an indirect collision between the Earth and an astronomical body the size of Mars, approximately 4.5 Gya (four and a half billion years ago) in the Hadean eon. The colliding body is sometimes called Theia, for the mythical Greek Titan who was the mother of Selene, the goddess of the Moon.".
- Giant_impact_hypothesis label "Entstehung des Mondes".
- Giant_impact_hypothesis label "Formazione della Luna".
- Giant_impact_hypothesis label "Giant impact hypothesis".
- Giant_impact_hypothesis label "Grote inslaghypothese".
- Giant_impact_hypothesis label "Hipótese do grande impacto".
- Giant_impact_hypothesis label "Hypothèse de l'impact géant".
- Giant_impact_hypothesis label "Teoria wielkiego zderzenia".
- Giant_impact_hypothesis label "Teoría del gran impacto".
- Giant_impact_hypothesis label "Модель ударного формирования Луны".
- Giant_impact_hypothesis label "فرضية الاصطدام العملاق".
- Giant_impact_hypothesis label "ジャイアント・インパクト説".
- Giant_impact_hypothesis label "大碰撞說".
- Giant_impact_hypothesis sameAs Teorie_velkého_impaktu.
- Giant_impact_hypothesis sameAs Entstehung_des_Mondes.
- Giant_impact_hypothesis sameAs Teoría_del_gran_impacto.
- Giant_impact_hypothesis sameAs Hypothèse_de_l'impact_géant.
- Giant_impact_hypothesis sameAs Hipotesis_tubrukan_besar.
- Giant_impact_hypothesis sameAs Formazione_della_Luna.
- Giant_impact_hypothesis sameAs ジャイアント・インパクト説.
- Giant_impact_hypothesis sameAs 거대충돌_가설.
- Giant_impact_hypothesis sameAs Grote_inslaghypothese.
- Giant_impact_hypothesis sameAs Teoria_wielkiego_zderzenia.
- Giant_impact_hypothesis sameAs Hipótese_do_grande_impacto.
- Giant_impact_hypothesis sameAs m.0dh9p.
- Giant_impact_hypothesis sameAs Q723219.
- Giant_impact_hypothesis sameAs Q723219.
- Giant_impact_hypothesis sameAs Giant_impact_hypothesis.
- Giant_impact_hypothesis wasDerivedFrom Giant_impact_hypothesis?oldid=604936425.
- Giant_impact_hypothesis depiction Giantimpact.gif.
- Giant_impact_hypothesis isPrimaryTopicOf Giant_impact_hypothesis.