![Close-up image of crater Cabeus A near the moon's south pole](https://appel.nasa.gov/wp-content/uploads/2010/07/3a1-670x380.jpg)
Moon Mission on a Shoestring
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By Haley Stephenson and Matthew Kohut When NASA announced that the Lunar Reconnaissance Orbiter (LRO) would upgrade from a Delta II to a larger Atlas V launch vehicle, a window of opportunity opened for an additional mission to the moon.