Criticism of the Space Shuttle program costs through amortization. Development costs were expected to be recouped through frequent access to space. These claims were made in an effort to obtain budgetary funding from the United States Congress. Beginning in 1981, the space shuttle began to be used for space travel. However, by the mid-1980s the concept of flying that many shuttle missions proved unrealistic and scheduled launch expectations were reduced 50%. Following the "Challenger" accident in 1986, missions were halted pending safety review. This hiatus became lengthy and ultimately lasted almost three years as arguments over funding and the safety of the program continued. Eventually the
Space Shuttle Mission 2007 Space Shuttle Mission 2007 Space Shuttle Mission 2007, is a highly realistic Space Shuttle stand-alone mission simulator for Microsoft Windows. The simulator was released on January 1, 2008 after having been under development for more than six years. The main purpose of "Space Shuttle Mission 2007" is to allow the gamer to experience real historical NASA Space Shuttle missions from liftoff (T-00:01:50:00) to landing. Initially, "Space Shuttle Mission 2007" was released with a set of 11 missions but as time passed, the development team has been releasing new missions as free add-ons. The missions include satellite deployment and servicing (including