Is unknow flying object real?

Question

Is unknow flying object real?

Answer 1

Many objects apearing in the sky are unknown.We can not identify a fast moing object.It may be a satellite,weather balloon,military testing new aircrafts,meteos or shooting stars.

Since we dont know it, we call it unidentified flyimg object.UFO!!!!

Answer 2

Pretty much... anything that can't be immediately identified is a UFO.  Your question is likely directed to extraterrestrial life I think.  In that case there is no official answer.  Some people believe, others do not.  People have verifiable but unexplainable events happen to or in front of them, while others claiming encounters and abductions have been clearly disproved.  My personal opinion is that most of what are claimed to be UFOs are military craft.  But I also believe that the idea of Earth being the only place in the universe with intelligent life is impossible.  If we have and/or are being visited by aliens or extra-dimensional beings I think humankind would sadden or confuse them.  

So whether it's real is totally subjective to the person asked.