I think that aliens do exist. There is so much space. Our universe is huge so there has to be atleast some life out there. We also don't know what's on Area 51 so there could be aliens there. There is no way we are the only life in the universe because it's so big and huge. With all the space it makes no sense that there would be no life. Aliens have to be out there. There is probably another earth too with people on it. maybe they already found us and thought we were dangerous and they fled. If they did we would never find them because of how big the universe is.