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In page Moon landing conspiracy theories:

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The Apollo program collected 380 kg (838 lb) of Moon rocks during the six crewed missions. Analyses by scientists worldwide all agree that these rocks came from the Moon[citation needed] – no published accounts in peer-reviewed scientific journals exist that dispute this claim. The Apollo samples are easily distinguishable from both meteorites and Earth rocks[1] in that they show a lack of hydrous alteration products, they show evidence of having undergone impact events on an airless body, and they have unique geochemical traits. Furthermore, most are more than 200 million years older than the oldest Earth rocks. The Moon rocks also share the same traits as Soviet samples.[2]