If you think about it the Orbiter Space Shuttle really isn't all that old. It's also hard to forget the tragic scenes of the Challenger and Columbia disasters. Still, mankind pushed on, taking chances and perhaps giant leaps of faith to explore a universe we know little about. I question the decision as to why the program had to come to an end. I'd rather see cuts in other areas then to sacrifice such an important scientific tool. I only hope I'll get to witness the next generation of space flight technology and travel in my lifetime. We will miss you Enterprise, Discovery, and Atlantis. May Challenger and Columbia rest in peace.