1. The problem statement, all variables and given/known data Oh well I'll post here ... There is no mathematics here. It's history based. This question may appear in one of my Physics exams. I just need to verify if my exam response is accurate, as I omitted irrelevant information such as how von Braun forged papers to escape from Nazi Germany and surrendered to American forces and so on. 2. Relevant equations Identify data sources, gather, analyse and present information on the contribution of Tsilokovsky, Oberth, Goddard, Esnault-Pelterie, O'Neill or von Braun to the development of space exploration. 3. The attempt at a solution Before World War Two the young engineering student named Werhner von Braun dreamed of the possibilities of space exploration by reading science fiction. von Braun had developed a liquid-fuelled rocket during World War II which was in the form of the V2 ballistic missile used by Hitler to attack London. After his surrender to the American forces near the end of World War two he had become an American citizen who developed ballistic missiles for the US Army. In the 1960's he was transferred to NASA where his dreams of space exploration became true as well as taking man to the moon.von Braun was the chief architect of the Saturn V launch vehicle which propelled the American crew of the Apollo II to the moon. The purpose of the Saturn rockets was to carry heavy payloads into and beyond Earth orbit. In 1975, before von Braun's death he was awarded by the Notable Laureates of the National Medal of Science for his work on making the liquid fuelled rockets a practical launch vehicle and his own contributions to the advanced space vehicle and culminating the Saturn series which made the Apollo program possible. The Apollo space progrsam director Sam Phillips had an amended quote that without von Braun,American would haven ever reached the moon.