Photo taken on June 16, 2013 shows the Tianhe-2 supercomputer developed by China's National University of Defense Technology in Changsha, capital of central China's Hunan Province. Tianhe-2, which means "Milky Way-2" in Chinese, remains the world's most powerful computer, according to a biannual Top500 list of supercomputers released on June 23, 2014. It is the third time Tianhe-2 has topped the list. [Xinhua]