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UFO’s do exist. There is some evidence they do exist. First of all, there are many pictures or movies of them. Some people took pictures. Many people actually saw UFO’s silhouette. It was broadcast on TV. They said that UFO’s do really exist! I watched it many times. There are many crop circles. Some people thought that these circle were made by aliens. Second, Space is very large! The earth is one planet in space. There are many planets. In the past, a Martian was the talk of the town. If they do exist, UFO’s do exist too. Water was discovered on the moon. Other living things may do exist there. Third, many people believe that UFO’s do exist. Among of them there is a society for the research of UFO. They insist on existence of UFO. The government doesn’t deny it. In Japan, UFO’s started a boom before. Then there were many productions on the theme of UFO. In this way, UFO is recognized in the world.