Good. I'm glad the moon mission is canceled. It was nothing more than a public relations type of project. It really would do little to further our knowledge. Why did we go there in the first place in the 60's? What was the purpose back then? Simple: to get there before Russia - it made us look good and them look bad. Was anything else gained? Yes, we figured out that the moon isn't made of cheese.
Now, a lot of people want us to return to the moon. What for?
"because if some meteor is going to become crashed into us, we need someplace for everyone to go. Or, we could start bases on the moon to help reduce the population on Earth."
Bummer. But wrong. The international space station which is merely a few miles from the earth (173) can barely keep a half dozen humans alive. We will never, at least not for a long long long time be using other places in the solar system to decrease the population on earth. Quite simply, the population grows here more than 10,000 times faster than we'd ever be able to remove people from this rock. Now, consider the energy costs and materials costs just to get a half dozen people to the moon - the space shuttle doesn't even come close to geosynchronous orbit of our satellites; 200 miles compared to 22,200 miles. That's less than 1% of the altitude. Imagine the size of the rocket boosters to get something the size of the shuttle to the moon, over 200,000 miles away.
We just don't have the technology, nor would such a trip to the moon do anything to develop such technology to get there better. And, there's nothing to do there. Oh, right. We could build a base to launch things from. That way, we could launch stuff from the earth, land on the moon. Hang out for a few days, then re-launch it. Absolutely brilliant.
I say *raise* NASA's budget to 25 billion, and have them start doing some science that would truly help humanity, rather than these huge projects that just waste the lion's share of their resources. All over the world, including this forum, people are arguing about global warming. All NASA has to do is stick a satellite or two at the right spot to watch the Earth, and that question could be settled once and for all.
Is going to the moon the right thing to do ever? Sure, it would be nice to see humans start populating the rest of the solar system & galaxy eventually. That's probably our destiny. But there's a certain order in technology that would better suit us: better development of solar power - far more efficient solar cells. A space elevator. If you understand what a space elevator is, you should realize that the first country to build one will essentially own space.