The Space Transportation System (STS), aka "Shuttle" has a LOT of faults...no question! But let's look at what the Shuttle HAS done for the space program:<br /><br />As originally conceived, the Shuttle was supposed to be a COMPLETELY reusable TSTO, with a MANNED flyback booster. That concept entailed FAR, FAR too many development problems, costing far more money than could be coaxed out of Congress (don't forget the Viet Nam War was still affecting our economy)! The concept was scaled back to the configuration we have been using for the past quarter-century!<br /><br />What were some of the advances and accomplishments of the Shuttle? It gave us a heavy-lift capability that sent the Hubble Space Telescope, probably the most useful tool for studying the Universe to come along so far! Shuttle gave us the capability to go up and REPAIR the flawed optical system that would have rendered the Hubble just about useless! Could a ballistically-recovered system, or an ELV have done the job? Perhaps... probably... MAYBE.<br /><br />Shuttle gave us the capillary-action Reaction Control System tanks, which allows more efficient attitude control capability. <br /><br />Shuttle has allowed us to recover the heaviest airborne payload from high altitude, the 175,000 lb. SRB's. That technology can be put to use in a number of applications!<br /><br />Shuttle has given us EXPERIENCE in space OPERATIONS. This will stand us in good stead, eventually!<br /><br />Shuttle has given us the experience in creating large diamter propellant tanks using manufacturing techniques and alloys that were not available heretofore.<br /><br />Shuttle has given us experience in designing Thermal Protection materials, and experience in trying to turn around for repeated launches. The fact that this has proven to be one of the major failings in the Shuttle design can be useful. Thomas Edison when asked what he learned from many, many UNsuccessful attempt to create a light bulb filament before finding one that