Space Shuttle It weighed 3.4 metric tons (7,500 lb) less than the last run of lightweight tanks, allowing the Shuttle to deliver heavy elements to ISS's high inclination orbit. As the Shuttle was always operated with a crew, each of these improvements was first flown on operational mission flights. The solid rocket boosters underwent improvements as well. Design engineers added a third O-ring seal to the joints between the segments after the 1986 Space Shuttle "Challenger" disaster. Several other SRB improvements were planned to improve performance and safety, but never came to be. These culminated in the considerably simpler, lower cost, probably
Space Shuttle Mission 2007 Space Shuttle guiding the user through the mission. Extra-vehicular activities are conducted in first-person view allowing the user to experience the same feeling as astronauts do while "space walking". In certain missions, the virtual astronauts will also drive the Manned Maneuvering Unit to capture satellites for maintenance. The latest mission add-on is the STS-47 Spacelab mission. In this mission, the user can visit the Spacelab-J and float inside the lab in Zero-G just like real astronauts. 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