ALH84001 vs Lafayette
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ALH84001
ALH 84001 is a roughly 4.1-billion-year-old Martian orthopyroxenite meteorite found in Antarctica's Allan Hills in 1984. In 1996, researchers reported microscopic structures and chemical features that they interpreted as possible evidence of ancient Martian life, prompting extensive scientific debate. Later studies offered nonbiological explanations, but the specimen remains important for research...
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Lafayette
Lafayette is a nakhlite, a type of igneous meteorite identified as originating on Mars. It was recognized in the collection of Purdue University in Indiana by 1931, although the circumstances and date of its arrival on Earth remain uncertain. Studies of alteration minerals within it, including clay and carbonate phases, have provided evidence that its Martian parent rock interacted with liquid wat...
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