Like a coin has two side,there is a positive aspect and a negative aspect to the humanbeings live in the outer space.The positive aspect is that the human can live in a new domicile,supply new energy resources,also can help human understand the space better .The study of the space is also benefit to other field .The negative aspect is that live in the space can spend more money,and it is impracticable for human live in other stars ,it also dangerous for humanbeings travel in space.不知道行不行,自己再看著改改吧!