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在全球一片火星热的推动下,美国航宇局约翰逊航天中心最近提出了一项载人火星飞行计划,该计划设想于2007年,即前苏联发射的第一颗卫星“斯普特尼克”发射50周年之际启动。
Driven by a global Mars heat, the NASA Johnson Space Center recently proposed a manned Mars flight plan envisioned in 2007 as the launch of the first satellite “Sputnik” by the former Soviet Union The 50th anniversary of the start.