43 years ago today, on January 13, 1982 (December 19, 1981 lunar calendar), our country's self-developed electric rocket successfully conducted space flight tests for the first time. On January 13, 1982, our country's self-developed electric rocket successfully conducted space flight tests for the first time, becoming a country that has mastered this new type of space micro-thrust rocket engine technology after the United States, the Soviet Union and Japan.