China on Monday successfully launched the Long March-12B Y1 carrier rocket into space from the Dongfeng commercial space innovation pilot zone in northwest China. The rocket blasted off at 4:40 p.m., carrying a group of networking satellites for the Qianfan Constellation, also known as the Spacesail Constellation, into their preset orbits. The mission was declared a complete success. The mission marked the maiden flight of Long March-12B rocket and the 647th flight mission of the Long March ca