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The Twilight Zone on Mercury ( the planet) has been disproved. It nor longer exists except as a science-fiction concept. It was supposed to be a belt of earthlike climate between the two extremes of Brightside ( perpetually facing solar heat) and Darkside- the opposite extreme. these theories were based on a false hypothesis that the planet did not rotate in a normal orbit. So, the Mercurial Twilight zone does not exist- no chemical composition is possible!

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13y ago

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