Mars probe makes course correction “天问一号”第2次轨道修正 China's Tianwen 1 Mars probe carried out its second midcourse correction maneuver on Sunday night, according to the China National Space Administration. 据国家航天局消息，9月20日晚，我国的“天问一号”火星探测器完成第二次轨道中途修正。 The robotic spacecraft ran its four 120-Newton thrusters for 20 seconds at around 11 pm after receiving control signals from its ground controllers, the administration said in a statement on Monday morning. 国家航天局9月21日上午发布声明称，9月20日晚11时许，在收到地面控制团队的控制信号后，“天问一号”探测器四台120N发动机同时点火，工作20秒，完成了轨道修正任务。 By Monday morning, Tianwen 1 had traveled 160 million kilometers in an Earth-Mars transfer trajectory toward the red planet and was nearly 19 million km from Earth, it added. 截至9月21日上午，“天问一号”探测器已经在地火转移轨道上飞行了1.6亿公里，距离地球约1900万公里，仍在继续飞向火星。 China launched Tianwen 1, the country's first independent Mars mission, on July 23 at the Wenchang Space Launch Center in Hainan province, opening the nation's planetary exploration program. 7月23日，我国首次独立火星探测任务“天问一号”探测器在海南省的文昌卫星发射中心成功发射，开启了我国行星探测任务的序幕。