China launched a rocket into space on Tuesday, successfully placing three satellites into preset orbit. A Long March-11 carrier rocket, taking the satellites coded as Shiyan-24C, blasted off at 6:39 a.m. Beijing Time from waters off the coast of Yangjiang, south China's Guangdong Province. The satellites will be used for space science and technology experiments. The mission marks the 503rd flight of the Long March carrier rocket series.