6日:哥伦比亚航天飞机发射再次取消。因为在起飞前31秒钟,有1500加仑的液氧从外挂箱中流出。8日:旅行者2号探测器发现天王星的第六颗卫星。这是从探测器距天王星3000万公里处用窄角照相机长时间曝光所得的图象上观测得到的。10日美国国家海洋大气局(NOAA)关闭了诺阿-8气象卫星上的仪器,因为卫星上为姿态稳定提供时标的主钟上的脉冲晶体振荡器失灵。 6th: Columbia shuttle launch canceled again. Because 31 seconds before takeoff, 1500 gallons of liquid oxygen flow out of the enclosure. 8th: The traveler’s probe No. 2 found the sixth moon of Uranus. This is observed from the image of the detector taken from the long-term exposure of a narrow-angle camera at 30 million kilometers from Uranus. On the 10th, the National Oceanic and Atmospheric Administration (NOAA) turned off the Noah-8 weather satellite because the pulse oscillator on the main clock, which provided a time scale for attitude stabilization on the satellite, failed.