今年8月30日,几经挫折的美国第三架航天飞机“发现”号终于踏上了其首次航行的征途。这次发射日期原定于6月19日,但由于它的计算机和一台主发动机出故障而被推迟了三次。这次“发现”号的首航,也是美国航天飞机的第12次飞行。它在为期6天的轨道飞行中圆满地完成了预定的任务,于9月5日返航,并安全降落在加利福尼亚州爱德华兹空军基地。参加这次飞行的有6名宇航员,其中朱迪·雷斯尼克是美国 On August 30 this year, the frustrated U.S. space shuttle Discovery found its way to its first voyage. The launch date was originally scheduled for June 19 but was postponed three times because of the failure of its computer and one of the main engines. The first flight of the Discovery was also the 12th flight of the U.S. space shuttle. It successfully completed its scheduled mission on a six-day orbital flight, returned on September 5 and landed safely at Edwards Air Force Base, California. Six astronauts took part in the flight, with Judy Resnik being the United States