| − | As one of the most complex engineering projects in history, the station was planned over several decades and is being constructed over the many countries on earth, the station has experienced problems of various nature. Some of the latest have been retracting a solar panel, spilled food, and a central computer failure. Most of these have been successfully resolved. | + | As one of the most complex engineering projects in history, the station was planned over several decades and is being constructed over the many countries on earth, the station has experienced various problems. Some of the latest have been retracting a solar panel, spilled food, and a central computer failure. Most of these have been successfully resolved. |