《Popular Mechanics 大众机械》 2019年 7/8月刊
回答: ▆ ▆ ▆ ▆ ▆ 2019年 6月 16日 【今日书刊】 ▆ ▆ ▆ ▆ ▆ 由 icemessenger 于 2019-06-16 1:25
FROM MOON TO MARS
Fifty years ago this month, Neil Armstrong took that first historic step onto the moon. Now, we’re going back——T-minus 5 years, and counting——“by any means necessary,” declared Vice President Mike Pence in March. The plan: launch a moon-orbiting spaceship, a lunar outpost, and a moon-based fuel plant, all to prepare for Mars, our next Giant Leap for Mankind.
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版主:icemessenger于2019_06_16 5:47:49编辑
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