2016年5月19日 星期四

Lockheed Proposes to have Humans Orbiting Mars by 2028

Lockheed Martin proposed a system to send humans to orbit Mars in the year 2028—a concept that shares many core values with The Planetary Society's report, Humans Orbiting Mars, we released last year.

from Planetary Society Blog http://ift.tt/1W55Qil
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