Space travel
, is a wonderful word! I believe that many people are very want to experience personally once, but expensive fee restrictions in the world the number of tourists, only a minority of people and astronaut can space travel. Common people can think, but to the continuous progress of science and technology in the future, I hope one day we can all to space travel, can even live in space, give the earth reduced pressure, for human find new living environment. That is, I believe by the earth into space by China to the United States is as convenient, people can like space travel, but now we can see.请加分采纳!