What characteristic of lunar PSR ice contributes to its resource stability compared to terrestrial ice?
Answer
It is inherently stable until disturbed because it exists in a near-perfect vacuum lacking thermal energy to cause migration or sublimation.
Unlike terrestrial permafrost, which is subject to geothermal warming, lunar ice in PSRs remains stable for eons because the extreme cold and vacuum prevent the water molecules from gaining enough energy to escape or change phase.
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