/u/weh_town's posts in /r/askscience
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How do astronomers hypothesize/determine what elements are present on planets based on telescopic images?
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How do astronomers hypothesize/determine what elements are present on planets based on telescopic images?
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Do city birds see vehicles on the road as living beings? If so, how do they reconcile us entering and exiting our vehicles? If not, do they understand cars as tools for humans?
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