China sent a new satellite group into space from the Taiyuan Satellite Launch Center in north China's Shanxi Province on Thursday. The satellite group was launched at 7:39 p.m. aboard a modified Long March-6 carrier rocket and entered its preset orbit successfully. It will constitute the Spacesail Constellation, a mega commercial Chinese low-orbit satellite network, and the launch marked the 648th flight mission of the Long March carrier rocket series.