QUOTE(Dynomite @ Sep 14 2005, 10:19 PM)
I don't think it is a waste. Tell me what is a waste about it, here is one example of something useful that NASA has done with the space program.
Whewn they crashed the satallite into the meteor or comet whichever it was (I don't follow the news close enough to know) you probably looked at it and said a waste of money before considering why NASA would spend so much money to crash something so expensive before you even considered looking at the beneficial aspects of it.
One theory for the dinosuars becoming extinct is an asteroid hitting Earth right? What if one where to hit Earth now, it would mean the end of man-kind, they crashed it into the asteroid/comet so they could find out it's compostition to learn how to defend Earth against one if one was going to hit Earth. It really isn't as simple as shooting a missille at it as you might assume, that too would be dangerous in itself...
NASA really just needs to get on-track with the manned space program, there
is more to NASA than just Space Shuttles you know...

Although understanding the composition of an asteroid may help give knowledge to better defend the earth from asteroids there are more compelling reasons to look at the composition of asteroids. These include understanding the origins of the formation of the solar system and learning what resources are available on the asteroids. Also learning about asteroids is interesting in its own right.
In the future with better knowledge of the available resources in asteroids we may be able to use these resources in space (ISRU) to support space exploration and space colonies or even mine them an ship resources from the to earth.
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