I love NASA. When they get something right they get it really right. There latest success is the Stardust spacecraft. It traveled more than 3 BILLION miles to collect dust from a comet. Using its gel covered collector plate it trapped particles moving at more than 13,000 mph. All this, and it safely brought back all that good stuff back to the earth safely. All for about 212 million dollars. A steal really when you consider that is less than a dollar a person if we all chipped in. About the cost of a pack of gum for every person in America. I think we can afford it. These particles are amazing because they are made of the pristine material that the solar system was formed from. These little chunks of stuff are older than the sun. Just think about that for a minute, we as humans are able to build something than can fly 3 billion miles, catch some super sonic dust, that is older than the sun, and bring it back for only 200 million dollars. Amazing! See what we can accomplish when we put our big brains to something other than blowing ourselves up and polluting the earth. Read more here.