Are aliens among us? Do you believe?

[cloud1161]

i personally believe that is absolutely foolish to believe that earth is the only planet capable of having life in a universe over 72 light years in size (this is the last guesstimation i heard, its probably bigger now).  but the question if there beings from another planet here on earth, im not too sure if thats likely because odds are that beings from another planet need a different gas or liquid to live other than our oxygen and water.  even the aircrafts dont seem accurate because when they came into earths gravity they would be brought down like our spaceships do at speeds that break the sound barrier.  the only way their aircrafts could enter our atmosphere without damage is if they had some type of technology that allowed the craft to ignore air resistance and gravitational pull.  but who knows, aliens could possess powers beyond all our reasoning.