Long March 4B rocket carrying two satellites of the "Shijian VI-04" group lifts off from the launch pad in Taiyuan, capital of north China's Shanxi Province, Oct. 6, 2010. The satellites which have entered the space orbits will carry out probes on space environment and radiation and conduct space science experiments, according to the Taiyuan Satellite Launch Center. (Xinhua/Shang Chunya)