nice
That "CRaTER" thing, though. Why orbit the moon with it? Seems like they only need to get it away from the earth's mag field to get their results, if I understand its function. You would think they would get better results if they kept it away from a large mass. Or is it to create a (incredibly low-res) cosmic ray map of the heavens not obscured by the nearby moon?
Problem with a lunar orbit mission is its limited duration. If they sent it to a LaGrange point, it could stay more or less indefinitely. Or to a solar orbit.