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8月20日晚，南航某航班的飞行员在其微博上发布消息，称在上海上空一万零七百米的地方看到一个发光的圆球，由小变大，最后变成了一个直径约92公里的巨型球体，并在20分钟后消失不见。华东空管局表示，当晚他们曾接到十多个类似事件的报告，并称该物体未能被飞机雷达扫描到，也没有对航班产生影响。同时，在北京和太原也有类似的目击报告出现。对于这次不明飞行物报告事件，科学松鼠会频道主编虞骏称，迅速膨胀的球体可能是由某种喷气推进装置（类似火箭）熄火之后，剩余燃料在太空中迅速扩散所形成。 More than 10 aircraft crews witnessed an unidentified flying object on the evening of Aug 20. The object, a huge shining globe, was spotted 10.7 kilometers above Shanghai at 9 pm and transformed from a small globe to one about 92 kilometers in diameter, which faded away after 20 minutes, according to a micro blog by a man claiming to be the pilot of China Southern Airlines flight CZ6554. A source with the East China Air Traffic Control Bureau said they had received more than 10 reports of similar findings from pilots on the night of Aug 20. The source said the object was not detected on radar and had no affect on flights at the two international airports in Shanghai. According to Tang Haiming, spokesman with Shanghai Sheshan Observatory, considering its huge size, the globe was unlikely to an astronomical object, as no astronomical object could appear a hundred times bigger than the moon to the naked eye. | 
