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Message: <blockquote data-quote="Nidarshana_k" data-source="post: 29196988" data-attributes="member: 580041">alsoscientists from the university of Mexico used radiocarbon dating and came to the conclusion they are a thousand years old?Radiocarbon dating works because radioactive C14 is created in EARTHS atmosphere at a consant rate. EARTH plants take C14 up during photosynthesis, animals by eating plants/other animals. Hence, the ratio of C14 to normal C is the same in the atmosphere as in living organisms. Once an organism dies it doesn't take up any more C14, C14 starts to decay at constant halftime (5730±30 years), and the C14/C ratio shifts.Key here is this is specific to earths atmosphere the cosmic radiation (mainly from the sun). Using this method on EXTRAterrestrials would be beyond stupidFor this method to work, they would have to eat stuff from earth and be here for long enough time for all of their body cells to be replaced (7 years in a human). Or they would have to come from an environment were the C14/C ratio is exactly as earths</blockquote>

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