Are We Alone In The Universe ?

Whenever we come across the news of UFO (unidentified flying objects) sightings, one question that come across in the minds of space researchers and human beings would be- Are we alone in the universe? Has there been existence of any species other than the human race? Heated debates, numerous arguments that’s what have been done till now and we are still at the square one. The space researchers still haven’t able to produce any concrete evidence of supreme species others than the human beings.

I wonder do these space researchers really want to know about them or they are just fooling themselves with facts and figures. It would be very stupid to think that these researchers aren’t aware of this thought, that if those species are found to be more advanced than us, they can do anything. But it’s just a thought, and I am hoping that this thought never comes into reality. Otherwise it could pose a strong threat for the human race.