Hi, This is question to every one. Most of the time I hear people claiming that they had seen UFO flying in sky ( in news channels) and also in some books I have seen photos of UFOs taken by civilians. My question to all of you is that these common people are the ones who witness these things then why the astronomers in the whole world are not able to see these things (despite having powerful telescopes, computers etc while the ordinary citizens sees such things.) Any answers?