All this tells that our visitor is from outside our solar system, since none of our suns planets, besides the earth, is capable of supporting intelligent life. It also tells us something else: our space visitor is a good bit more advanced than we are.

　　Whether it is because his race is more intelligent, or just because Planet X is older than the earth and he has had more time to develop, we cannot tell. But the fact is that he has come from outer space. The nearest star system to us is Alpha Centauri, four light-years away. So our visitor has come a minimum of four light-years. Our science, just on the edge of interplanetary flight, couldnt even begin to tackle such an interstellar voyage. We would have a lot to learn from such a visitor.

　　1. Intelligent life is certain to be found on other planets of the solar system than the earth.

　　2. Spacemen would have to fly a distance of 4 light years to visit us.

　　3. The bodies of spacemen are made up of protoplasm.

　　4. In the near future, space light will be an almost everyday occurrence.

　　5. The occasional adverse periods on all planets require intelligent beings to eat meat for survival.

　　6. The judgment of distances increases with the number of eyes.

　　7. The passage mainly tells us about spacemens resemblance to human beings and requirements of life-supporting planets.

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