without FTL, it will be pretty hard to sustain life for a very long
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送交者: steven 于 2007-05-22, 13:25:21:
回答: 史蒂文你真的认为如果人类找不到超光速旅行的手段就不会造大型太空船去远征了吗 由 蓝隼 于 2007-05-22, 13:18:54:
time. It is possible to use ion-engine to accelerate spaceship to sub-light speed, but that still requires a lot of time to go to somewhere to get resupply.
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