The Space Shuttle is developed by the National Aeronautics and Space A NASA coordinates and manages the Space Transportation System (NASA's name for the overall Shuttle program)， including intergovernmental agency requirements and international and joint NASA also oversees the launch and space flight requirements for civilian and commercial The Space Shuttle system consists of four primary elements: an orbiter spacecraft， two Solid Rocket Boosters (SRB)， an external tank to house fuel and oxidizer and three Space Shuttle main The orbiter is built by Rockwell International's Space Transportation Systems Division， Downey， C， which also has responsibility for the integration of the overall space transportation Both orbiter and integration contracts are under the direction of NASA's Johnson Space Center in Houston， T The SRB motors are built by the Wasatch Division of Morton Thiokol C， Brigham City， Utah， and are assembled， checked out and refurbished by United Space Boosters I， Booster Production C， Kennedy Space C Cape Canaveral， F The external tank is built by Martin Marietta C at its Michoud facility， New Orleans， L， and the Space Shuttle main engines are built by Rockwell's Rocketdyne Division， Canoga Park， C These contracts are under the direction of NASA's George C Marshall Space Flight Center， Huntsville， A
China's aerospace industry starting in the 1950s， following the development of China's aerospace industry is the main stages: On October 8， 1956， China's first rocket missile development agencies - Department of Defense established the Fifth Research Institute， Qian Xuesen-term On July 19， 1964， China's first biological mice contained in Anhui Kwong Tak rocket successfully launched China's space science and exploration taken a step On April 1， 1968， the China Aerospace Medical Engineering Institute set up to begin training astronauts and conduct elections manned space medical engineering On April 24， 1970， with the first satellite "Dongfanghong" on the 1st successful launch in Jiuquan， China became the world's first satellite launch of the five On November 26， 1975， the first successful launch recoverable satellite， three days after the successful return of China to become the world's first satellite master the technology in the three On September 7， 1988， in the long march on the 4th Taiyuan launch vehicle successfully launched on the 1st A Fengyun meteorological On April 7， 1990， "long march 3" carrier rocket successfully launched the US-developed "Asian N 1" satellite， China in the international commercial satellite launching service has occupied a space in the On July 16， 1990， "long march" on the 2nd teamed up for the first time in Xichang rocket successfully launched a manned spacecraft was launched to lay a In 1992， China's manned spacecraft formally included in the national plan for the development， the project was later to be called the "Shenzhou" spacecraft manned spaceflight On November 20， 1999， China successfully launched its first spacecraft - the "Shenzhou" spacecraft， returning module of the spacecraft in central Inner Mongolia Autonomous Region the next day in the successful On January 10， 2001， China successfully launched the "Shenzhou" spacecraft on the 2nd test， in accordance with the scheduled completion of space science and space technology test mission， in January 16 in central Inner Mongolia accurate On March 25， 2002， China successfully launched the "Shenzhou" spacecraft on the 3rd， flying around the earth 108 times， on April 1 accurate landing in central Inner M On December 30， 2002， China successfully launched the "Shenzhou" spacecraft on the 中国航天事业起步于20世纪50年代，以下是中国航天事业发展的主要阶段： 1956年10月8日，中国第一个火箭导弹研制机构——国防部第五研究院成立，钱学森任院长。 1964年7月19日，中国第一枚内载小白鼠的生物火箭在安徽广德发射成功，中国空间科学探测迈出了第一步。 1968年4月1日，中国航天医学工程研究所成立，开始选训宇航员和进行载人航天医学工程研究。 1970年4月24日，随着第一颗人造地球卫星“东方红”1号在酒泉发射成功，中国成为世界上第五个发射卫星的国家。 1975年11月26日，首颗返回式卫星发射成功，3天后顺利返回，中国成为世界上第三个掌握卫星返回技术的国家。 1988年9月7日，长征4号运载火箭在太原成功发射了风云1号A气象卫星。 1990年4月7日，“长征3号”运载火箭成功发射美国研制的“亚洲1号”卫星，中国在国际商业卫星发射服务市场中占有了一席之地。 1990年7月16日，“长征”2号捆绑式火箭首次在西昌发射成功，为发射载人航天器打下了基础。 1992年，中国载人飞船正式列入国家计划进行研制，这项工程后来被定名为“神舟”号飞船载人航天工程。 1999年11月20日，中国成功发射第一艘宇宙飞船--“神舟”试验飞船，飞船返回舱于次日在内蒙古自治区中部地区成功着陆。 2001年1月10日，中国成功发射“神舟”2号试验飞船，按照预定计划在太空完成空间科学和技术试验任务后，于1月16日在内蒙古中部地区准确返回。 2002年3月25日，中国成功发射“神舟”3号试验飞船，环绕地球飞行了108圈后，于4月1日准确降落在内蒙古中部地区。 2002年12月30日，中国成功发射“神舟”4号飞船。
