Qian Xuesen was a pioneer in the development of China＇s aerospace（航空航天）science and technology. He was called the "father of China's aerospace" and "king of rockets". He was also one of the most famous , (scientist) in the world.
Qian was born in Shanghai 11 December 1911. After graduating from Shanghai Jiao Tong University, he went to America for (far) study. After this, he spent many years teach) and doing research work at universities in the USA. And he made excellent achievements in America. , his heart was always with his motherland. In 1955, he finally returned to China with his family.
After returning to China, Qian led his team to overcome a series of difficulties and achieved many historic achievements. Qian worked with(thousand) of other scientists on China's "two bombs，one star＂ nuclear program（"两弹一星"核项目）. They created the atom bomb（原子弹）and later the hydrogen bomb（氢弹）（success）. They managed to complete this project in the fastest time in history.
Qian devoted(he) whole life to China's aerospace industry. He wanted to use his knowledge (build) a stronger China. He often says that science (have) no boundaries（边界），but scientists have their motherlands.
