BEIJING, Sept. 24 (Xinhuanet) -- China has successfully test-fired its first four-stage solid-fuel launch vehicle capable of putting small satellites into space, a spokesperson for the developer said on Wednesday. The spokesperson for China Aerospace Science & Industry Corp (CASIC) said that the successful test on Sept. 16 at north China's Taiyuan Satellite Launch Center makes China the third country in the world capable of developing such rockets after the United States and Russia. The newly-developed rocket is capable of putting up to 100-kg satellites into orbit around the earth for resources exploration, environmental monitoring and survey, scientific experiments...