A Wonderful Dinner

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    "Of course." Shen Hu nodded and left, while Rei just stood there pondering what Yueliang could have meant by not having a star chart was not a problem, as mapping galaxies is necessary to know where you are going and at the same time, extremely difficult.

    While a map of a planet may seem difficult, you are not creating a fully 3 dimensional map most of the time as it would be almost useless where as in space, you have up down left right, basically a gyroscope. If you did not have all the different directions mapped out, how would you know where to go? Either way, you would have to map out where everything is, and its rotation so as to not run into a planet, or comet, or something.