26 years ago today, June 12, 1999 (Lunar Calendar April 29, 1999), Long March series carrier rocket successfully launched two "comets" in China. Beijing time June 12, 1999 at 1:15 pm, China's satellite launch center, successfully with its own developed "Long March II C" improved carrier rocket, sent two "comets" into space. This launch was the fifty-seventh flight of Long March series carrier rocket, and also Long March series carrier rocket since October 1996, the fifth consecutive successful launch. This shows that China's fully independently developed carrier rocket performance is reliable, independently developed space launch and control technology has grown mature. This launched two "comets", is a complement to the Fukushima network. China's aerospace industry is participating in such a global and multi-region global