Academician, Chinese Academy of Sciences: as long as the Chinese to do it 10 years to asteroid mining asteroids | | | Ye Pei building in mining _ news
> Network diagram
Chinese academician ye peijian, a famous spacecraft system, information processing said 8th asteroid resource development is one of the space development direction in the future. "As long as the Chinese do, demonstration project within 10 years; large-scale mining, about 50 years or so. "He said.
Science and technology daily journalist from the day held at the Academy of China Aerospace Science and Technology Corporation learned of asteroid detection Symposium, asteroids, particularly near-Earth asteroids, and is one of the most valuable goals of space exploration in the near future. Five branches of the Moon and deep space exploration technology Huang Jiangchuan, head of the Office in the field believe that China should "Fourteen-Five" during a high starting point, the iconic asteroid exploration mission.
Ye peijian said at the meeting, use the asteroid bodies in its orbital characteristics, material properties, development possibilities are numerous. For example, some asteroids, rare metals content can reach the Earth several times, worth us $ jishiwanyi; overall also acts as a giant asteroid spacecraft development. At present, the main scenario, including using it as a resource development platform and interstellar travel platform.
Resource development programme is envisaged in the near future, captured an asteroid, will be controlled within the range of up to, or manned and robot resource extraction, access to scarce resources on asteroids and returned to Earth. Or direct use of the mineral resources of the asteroid, in-orbit construction work and so on.
"From the convergence of future manned asteroid exploration, extract deep space exploration mission asteroid resources to support follow-up point and captured the collision threat to Earth, dynamic feasibility point of view, China's future implementation of asteroid capture, asteroid may be ' caught ' into lunar orbit or Granges, 2. "Ye peijian said.
The programme's long-term vision is the asteroid as a space, and for humans to establish space facilities and interplanetary transfer system to provide basic materials, carried out further exploration tasks.
Interstellar platform will use the asteroid's orbit. The idea is, let the probe landed on the surface of the asteroid, or Hibernate or efforts to detect, the asteroids as the ferry platform. When the asteroid gets into the right position, the probe flew to deep-sky targets. This would reduce the detector's propellant needs less conducive to probe or expanding their range. The future, humans can build closed eco-system on the asteroid, using the energy of the asteroid to collect and supply maintenance system using small simulated Earth gravity by centrifugal force of the rotation of celestial bodies, to meet the residence requirements of astronauts, to form a mobile home space.
Idea is very good, and across many technology threshold between reality. Ye peijian said the asteroid probe "selected, exploration, controlled," involves a number of key core technologies. Like in select asteroid target Shi, involved parameter recognition and analysis, and science value assessment, and engineering feasibility analysis,; on target asteroid carried out early detection, to solution long time interstellar flight power and fuel supply, and deep empty Dim target independent navigation, and weak gravity objects of capture, and landing and attached, and surface movement, problem; for select and arrived of asteroid target, needed solution how in near distance achieved asteroid control job of problem, including elimination asteroid of since spin, Track offset it or transfer it to the target area.
When the asteroid resource utilization, first to conquer in-situ resource utilization technologies. Ye peijian said it was surveying, acquisition of celestial natural or waste resources to maintain the long-term survive in extraterrestrial technology products and services. Includes destination survey, exploration, acquisition and pre-processing of the raw resources, the original resources for propellant, energy and life support consumables production process, and to support the in-situ resource utilization of plant and equipment support.
At the meeting, Yang JI ye peijian, Purple Mountain Observatory, Chinese Academy of Sciences awarded the "ye peijian Star" named copper plaques, name certificate. It is understood that the Purple Mountain Observatory, No. 456677 was discovered on September 11, 2007 the international number to asteroids.
>: Tang Xiaohui
Article keywords:Asteroid mining ye peijian
I want feedback
Save a Web page
Science and technology daily
中国科学院院士：中国只要去做 10年内能去小行星采矿|小行星|采矿|叶培建_新闻资讯
>网络图
中国著名空间飞行器总体、信息处理专家叶培建院士8日表示，小行星资源开发必将是未来航天发展方向之一。“中国只要去做，10年内就能开展示范性工程；要实现大规模开采，大约需要50年左右。”他说。
科技日报记者从当日在中国航天科技集团公司五院举行的小行星探测学术报告会上了解到，小行星特别是近地小行星，是近期最有价值的太空探索目标之一。五院月球和深空探测领域办公室技术负责人黄江川认为，中国应在“十四五”期间实施一次高起点、标志性的小行星探测任务。
叶培建在会上表示，利用小行星天体自身的轨道特性、物质特性等，开发的可能性有很多。例如有些小行星稀有金属含量能达到地球的数倍，价值几十万亿美元；小行星整体也可以作为巨型航天器进行开发。目前主要的设想方案，包括将其作为资源开发平台和星际航行平台。
资源开发平台近期方案设想是，捕获一颗小行星，将其控制在可达范围内，然后开展机器人或载人资源开采，获取小行星上的稀有资源后返回地球。或者直接利用小行星的矿物资源，开展在轨建造工作等。
“从未来载人小行星探测的衔接性、提取小行星资源支持后续深空探测任务角度，以及捕获后对地球的碰撞威胁、动力学可行性角度考虑，中国未来实施的小行星捕获任务，或许会将小行星‘抓’到环月高轨或日地拉格朗日2点。”叶培建说。
该方案的远期设想，是将小行星作为太空中转站，为人类建立空间设施及星际航行转移系统提供基础材料，开展更深远探测任务。
星际航行平台方案将对小行星的轨道进行利用。其设想是，让探测器在小行星表面着陆，或休眠或开展探测，其间将小行星作为摆渡平台。当小行星到达合适的位置，探测器再飞向深空目标。此举可减少探测器的推进剂需求，降低探测器规模或拓展探测距离。未来，人类还能在小行星上建立密闭的大型生态循环系统，利用小行星的能源收集和供给维持系统运行；利用小天体自转产生的离心力模拟地球重力环境，以满足宇航员的居住要求，形成一个个太空移动家园。
设想很美好，和现实之间却隔着众多技术坎。叶培建说，小行星探测在“选、探、控、用”等方面涉及诸多关键核心技术。比如在选择小行星目标时，涉及参数识别与分析、科学价值评估、工程可行性分析等；对目标小行星开展前期探测，要解决长时间星际飞行电源与燃料供给、深空暗弱目标自主导航，以及弱引力天体的捕获、着陆与附着、表面运动等问题；对于选择并到达的小行星目标，需解决如何在近距离实现小行星操控作业的问题，包括消除小行星的自旋，偏移它的轨道或将其转移至目标区域等。
对小行星资源进行开发利用时，首先要攻克原位资源利用技术。叶培建说，这是勘测、获取地外天体的天然或废弃资源，用于维持可长期在地外生存产品和服务的技术。包括对目的地的勘测、勘探，原始资源的采集和预处理，原始资源转化为推进剂、能源、生保等消耗品的加工生产过程，以及支持原位资源利用的工厂和设备支持。
会上，中科院紫金山天文台台长杨戟向叶培建颁发了“叶培建星”命名铜匾、命名证书。据了解，紫金山天文台于2007年9月11日发现了国际编号为456677号的小行星。
>责任编辑：初晓慧
文章关键词： 小行星 采矿 叶培建
我要反馈
保存网页
科技日报
