If you mean alien spacecraft visiting Earth, then the answer is no. There are probably many, many civilizations in the universe, but the distances between them are just as, well, astronomical. Interstellar space travel is not likely to be economical for any civilization recognizable as such. Aside from that, there has never been any physical evidence of alien spacecraft on Earth, or, indeed, reliable evidence of any kind...
UFO means... Unidentified Flying Object..If "You" can't identify it.. its a UFO Alien Spacecraft.. does that mean any non american's in space?
I don't understand why people think long distance space travel will never, ever be possible. Like how people thought breaking the sound barrier would never, ever be possible, before we broke the sound barrier. It reminds me of this story: A well-known scientist (some say it was Bertrand Russell) once gave a public lecture on astronomy. He described how the earth orbits around the sun and how the sun, in turn, orbits around the center of a vast collection of stars called our galaxy. At the end of the lecture, a little old lady at the back of the room got up and said: "What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise." The scientist gave a superior smile before replying, "What is the tortoise standing on?" "You're very clever, young man, very clever," said the old lady. "But it's turtles all the way down!"
As far as UFO's, I would have to actually see one to believe in them. Now on the other hand I do believe in other beings out there in space, I cannot believe we here on earth are the only beings around.
Big History Channel geek here - did you know some of the famous artists from the 14, 15 and 16th century have paintings with UFO's in them? I found that to be so fascinating - but I guess a history geek would!
That's a negative... Only man-made type of things, anyway. I don't think aliens have ever flown here but I have no doubt there's other life out there somewhere
No, it means any non-humans in space. There are other people on this planet you know, a funny post indeed.
I don't think anyone can "not believe" that some flying objects have been "unidentified", can they? It's just factual, surely?
Actually i don't believe in UFOs Never seen in my entire life though only in USA few claims that they seen UFOs. DON.
I dont believe :-< and I won't,even of I see one...i would prefer i saw a military aircraft or something else
I don't, haven't seen anything.... near the size, never will =D and that aliens, I have always believed it's a myth or such, other people have different opinions.