There, he met and interviewed young Wernher von Braun, the V-2 project's technical director who one day would become the visionary behind the Saturn V rocket that put America on the moon. During their meeting, Tsien asked von Braun to put down on paper German breakthroughs and future space goals. The resulting report is credited with helping inspire development of the first U.S. satellites.
After the war, Tsien became the youngest full professor on the faculty at MIT. During a 1947 visit to see his family in China, he met Jiang Ying, a glamorous aristocrat who studied music in Germany and was one of China's most celebrated young sopranos. Her father -- a military adviser for Chiang Kai-shek's Nationalist government -- was helping wage a civil war aimed at crushing Mao Tse Tung's communist rebels.
The couple married later that year and moved back to America. When Tsien re-entered the United States in Honolulu, he reflexively answered "no" to a question on an immigration form asking whether he had ever belonged to a group advocating overthrow of the U.S. government. [End Excerpt]