Michael Wargo, chief lunar scientist at NASA headquarters in Washington, said the latest discovery also could unlock the mysteries of the solar system.
He listed several options as sources for the water, including solar winds, comets, giant molecular clouds or even the moon itself through some kind of internal activity. The Earth also may have a role, Wargo said.
"If the water that was formed or deposited is billions of years old, these polar cold traps could hold a key to the history and evolution of the solar system, much as an ice core sample taken on Earth reveals ancient data."
Too bad we didn't land in that area back in the 1970's . . . back when America had money and Saturn Five rockets full of fuel.
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