Imagine all those unusual beyond human nature could do, like those perfectly shaped stuffs which we can visually see above sea level, or simply imagining how big universe is, do you really think we are alone? We might not know scientist are fooling us that those planets we've known are just that but little did we know it might has something inside those planets but they refuse to share to us or seen something on the outer space. I don't know, we don't know, NASA is so secretive.