Some people believe that new knowledge can be obtained to expand the living space of human beings and new resources can be obtained from say no because of the cost and the safety of the astron
more problems we are having now can be solved. For instance, with the success of space shuttles and the feasibility of living in other planets, we may solve the population problem on the earth. Space proje
The Antarctic，a Desert of Ice All Year Round The antarctic is actually a desert．It is the only continent on the earth without a river or a lake．The antarctic is all ice all year round．The warmest t
鼠weakorz
