What do you think the aliens might be?

I'm not so sure the science of visiting ET's is even settled. We have no evidence really that they have ever visited us (who ever they are). We have a lot of speculation, but zero evidence. It is an assumption that there is probably life out there, besides us,somewhere in this vast universe. There are probably even civilizations out there, somewhere. but think about the size of the univers for a moment. It is unimaginably huge. a visit to the nearest star to us would take centuries to travel to at current technologies. And it is a multiple star system so it is unlikely there is a planet in it's system capable of supporting life. After that the distances increase exponentialy. Then we have the time factor. Or univers is over 13 billion years old. Our own galaxy is believed to be not much younger than that. So there is a chance that if there was another civilization in our own galaxy, it may well already have come and gone hundreds of millions of years ago and we would never even have known it was there. So, my conclusions, there is in all likelyhood life out there, somewhere in this universe, around some star in some galaxy somehwere, but the odds we will ever encounter that life are near zero. It would be like two plankton in the ocean.

I am really confused that they really do exists or not. But still if they really do exists then they may be some kind of creatures with higher technologies than we do have....