As we human has polluted the world environment atmosphere due to our action, now on to the space. It is good that space agencies are very sensitive about the safety of the space environment but the are not very sensitive about it thousands of tons of trash at space environment and taking various microbes. And also the cleaning of the space rocket is not safe because all microbes do not kill so we have come with an idea to sterilization whole the space rocket with ultra violate radiation which would kill microbes at high level. Also the advantage of the radiation on space rocket and inside of space craft to save the astronauts and the environment of our world. Discussingthe various parameters we would also discus the UV radiation and advantages.