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One of them is asu, going to the moon to try to locate hydrogen. Right. Why is that important, to try to see where hydrogen deposits might be . Geologically, we arent really sure why theres a lot of deposits of hydrogen at the poles. We understand that the pole sort of wobbles over time and we concentrate water at the poles of any planet that has water on it. But the moon is very dry, from what we know. Passing asteroids or comets might shed off water, and that would sort of get deposited in a blanket uniformly around the moon, and it gets redistributed over time. So you get meteorites that impact on the moon and sort of ballistically shoot the hydrogen around and it ends up in the places that are the coldest. Thats the only place its stable. Those places on the moon are these shadowed craters that are permanently in darkness all the time at the south pole because of the topography down there. As the moon rotates the light never gets in and so we know from about two other missions that

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