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向天空“史诗”级跃升(砥砺奋进的5年·中国高度)
2017-08-26 04:15:56 中国青年网
2013年4月26日,一颗名为高分一号的卫星在酒泉卫星发射中心发射升空,由此开启了中国高分辨率对地观测系统(简称“高分专项”)的新阶段,此后两年多,先后又有8颗高分卫星发射入轨。高分专项的实施将全面提升我国自主获取高分辨率观测数据的能力,加快中国空间信息应用体系的建设,推动卫星及应用技术的发展,有力保障现代农业、防灾减灾、资源调查、环境保护等重大战略需求,大力支撑国土调查与利用、地理测绘、海洋和气候气象观测、水利和林业资源监测、卫生疫情监测、地球系统科学研究等重大领域应用需求,积极支持区域示范应用,加快推动空间信息产业发展。
根据我国载人航天工程确立的三步走发展战略,在实现空间交会对接技术突破之后,2013年6月和2016年10月,神舟十号与天宫一号目标飞行器,神舟十一号与天宫二号空间实验室分别完成了交会对接,并形成了组合体在轨运行,进一步考核交会对接、载人天地往返运输系统的功能和性能,进一步考核组合体对航天员生活、工作和健康的保障能力等。
今年4月,天舟一号货运飞船成功发射并与天宫二号完成自动交会对接,顺利进行首次“太空加油”,之后完成了绕飞和第二次交会对接试验。这表明,中国已成功突破和验证了空间站货物运输、推进剂在轨补加等关键技术,稳步迈向空间站阶段。
2013年12月14日约21时11分18秒,中国探月工程迎来历史性时刻,嫦娥三号成功实施了月面软着陆,之后,玉兔号月球车开展月面探测。这意味着“绕、落、回”三步走发展规划转入三期“回”阶段。2014年11月,中国探月工程三期再入返回飞行试验获得圆满成功,这为将来嫦娥五号实施月面取样返回任务奠定了基础。
中国太空探索志存高远,在积极推进月球探测的同时,把目光瞄向更高的目标:火星。早在2009年左右,我国就研制了首个火星探测器“萤火1号”,并于2011年11月8日,搭载俄罗斯火箭发射升空,不幸的是此次发射失败了。不过,中国火星探测计划继续向前推进。国家航天局局长许达哲在国新办举行的一次新闻发布会上曾宣布,首次中国火星探测计划已经正式立项,工程研制工作已全面启动。争取在2020年发射探测和着陆巡视的火星探测器。
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