美国内华达山脉公司和联合国外空司近日宣布,双方将在2021年利用前者的“追梦者”私营航天飞机在低地轨道联合开展一项为期两周的不载人微重力实验任务。机长9米的“追梦者”形似美退役航天飞机,但要小得多。它可乘坐多达7名乘客,也可专门用于运送货物。这将是联合国首次开展航天任务。即将开展的这项任务将主要面向发展中国家,但各会员国均可申请在机 The United States Sierra Nevada Corporation and the United Nations Outer Space Division recently announced that they will jointly launch a two-week unmanned microgravity mission on low Earth orbit using the former “Dream Catcher” private space shuttle in 2021. Captain 9 meters “Dream Catcher” shaped like the United States retired shuttle, but much smaller. It can take up to seven passengers, but also can be used specifically for the delivery of goods. This will be the first UN space mission. The forthcoming task will mainly be for developing countries, but all member states may apply for clearance on the machine