Well, on the dark side of the moon, we can use any solar power, which is, right now, our promary source of power in outer space. Besides, what would be the reasons for testing on the moon? And why does it matter. According to NASA, we don't want to colonize the moon, we want to go to Mars, even though, it would be much less costly, not to mention less risky to attempt a colony on the moon. In the case of danger, it's less time to get home by far. NASA is currently drawing up plans for a manned mission to Mars by 2014. What I find funny is that 2014 is the exact year the Mayan calendar ends, and that calandar has predicted such dates as the American revolution, WWII, and many other downpoints, and up points in the life of the world. Now is that not freaky?