Space exploration is much too expensive and the money should be spent on more important things.

Some people say space exploration is much too expensive and they want to spend money on more important things. Space is unknown world although people have studied for a long time. We don\'t know how many possibilities are in space but we discovered that there is hope for human. The earth has been run out its resources for a long time. Besides, human have destroyed earth steadily such as deforestation, ozone despoil, global warming, pollution, and diseases and so on. If these phenomena are going on, human will be in danger to exist. In that sense, scientists have been interested in space and studied for a long period which is to find a new planet where human can live. Space is totally different kind of dimension. We can\'t sure anything what human needs to survive especially watery past and air for breathing. It is the reason that space exploration is dangerous and costs much money. However, I strongly believe this is indispensible work not only for curiosity but also for human being.