Why Eros? Don't you know what NEAR program is? Near Earth Asteroid Rendezvous
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送交者: steven 于 2007-11-12, 19:37:29:
回答: You will do well in China if you pretend to be an expert you are not. 由 wc 于 2007-11-12, 19:17:41:
That is to study Eros for a year. You mentioned it, wait you don't know what you're talking about? How much influence solar wind? It is hard to say. However, just give you a example, the ion engine on NASA deep space 1 produce a thrust no more than a piece of paper on your hand, and but it will push the deep space 1 to 100 km/s.
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