In that NASA site, it says already that currently no rocket

In that NASA site, it says already that currently no rocket

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送交者: steven 于 2007-11-13, 13:21:04:

回答: 我不是问 Gravity Assist 的原理由 deadmeat 于 2007-11-13, 12:57:50:

can push that 6000 kg payload into Saturn mission orbit.

ok 那以后中土就以这个为目标吧 - deadmeat (64 bytes) 2007-11-13, 14:39:07 (182574)
- well, you can use ion engine to do that, even to 100km/s. - steven (49 bytes) 2007-11-13, 16:25:11 (182638)