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Hydrogen atoms escape from the Mars upper atmosphere, while water containing heavy hydrogen (deuterium) remains trapped on the planet. The escape of hydrogen helped to turn Mars from a wet planet 4.5
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Water in space – a 'Goldilocks' star reveals previously hidden step in how water gets to planets like Earth
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Water in space – a 'Goldilocks' star reveals previously hidden step in how water gets to planets like Earth
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