2.空间环境下的科学实验。利用空间科学卫星、“嫦娥”探测器、“神舟”系列飞船和“天宫一号”目标飞行器等，开展一系列空间科学实验研究，深化了空间微重力和强辐射条件下生物生长、材料制备等机理的认识，取得了一批有影响力的研究成果。

　　3.空间环境探测与预报。利用空间科学卫星、“神舟”系列飞船等，积累空间环境主要参数及其效应数据，为航天器安全运行提供空间环境监测与预报服务。

　　（九）空间碎片

(2) Space environment scientific experiments. China has carried out a series of space science experiments using space science satellites, Chang'e lunar probe, Shenzhou spacecraft series and Tiangong-1 target aircraft, deepening the understanding of the mechanism of biological growth and materials preparation under the conditions of space microgravity and intense radiation, and achieving some influential research findings.

(3) Space environment detection and forecast. China has identified the space environment's major parameters and effects using space science satellites and the Shenzhou spacecraft series to provide space environmental monitoring and forecasting services for the safe operation of spacecraft.

9. Space debris

　空间碎片监测、预警、减缓及防护技术体系逐步完善，标准规范体系不断健全。空间碎片监测预警实现业务化运行，为在轨航天器安全运行提供有力保障；防护设计技术取得突破，开展航天器空间碎片防护工程应用；全面实施“长征”系列运载火箭末级钝化，对废弃航天器采取有效离轨处置措施，切实保护空间环境。

　　三、未来五年的主要任务

　　未来五年，中国将加快航天强国建设步伐，持续提升航天工业基础能力，加强关键技术攻关和前沿技术研究，继续实施载人航天、月球探测、北斗卫星导航系统、高分辨率对地观测系统、新一代运载火箭等重大工程，启动实施一批新的重大科技项目和重大工程，基本建成空间基础设施体系，拓展空间应用深度和广度，深入开展空间科学研究，推动空间科学、空间技术、空间应用全面发展。

China has improved the monitoring and mitigation of and early warning and protection against space debris. It has also enhanced standards and regulations in this regard. The monitoring of and early warning against space debris have been put into regular operation, ensuring the safe operation of spacecraft in orbit. China has also made breakthroughs in protection design technologies, applying them to the protection projects of spacecraft against space debris. In addition, all Long March carrier rockets have upper stage passivation, and discarded spacecraft are moved out of orbit to protect the space environment.

III. Major Tasks for the Next Five Years

In the next five years China plans to expedite the development of its space endeavors by continuing to enhance the basic capacities of its space industry, strengthen research into key and cutting-edge technologies, and implement manned spaceflight, lunar exploration, the Beidou Navigation Satellite System, high-resolution earth observation system, new-generation launch vehicles and other important projects. Furthermore, the country is to launch new key scientific and technological programs and major projects, complete, by and large, its space infrastructure system, expand its space applications in breadth and depth, and further conduct research into space science, promoting the integrated development of space science, technology and applications.