This artist rendering released by NASA shows the twin spacecraft Ebb and Flow orbiting the moon. The duo found evidence that the moon’s interior is more battered than previously thought and the crust is thinner than expected. (AP Photo/NASA)

Associated Press
This artist rendering released by NASA shows the twin spacecraft Ebb and Flow orbiting the moon. The duo found evidence that the moon’s interior is more battered than previously thought and the crust is thinner than expected. (AP Photo/NASA)
This artist rendering released by NASA shows the twin spacecraft Ebb and Flow orbiting the moon. The duo found evidence that the moon’s interior is more battered than previously thought and the crust is thinner than expected. (AP Photo/NASA)
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