The Alien stories have always fascinated us.Say it rumour or fact,but thinking of a world other than earth has always brought the science and astronomy together.
A lot of work has been going around to underSKY 
this.A recent picture at Mars showing a human like figure has stunned a lot of scientists.A month or two,we listen someone seeing an UFO,often ignored by many.
But we will try to figure out the real situation:
1. Let us believe there exists an UpperWorld.Now,we have heard of aliens since the 19th century.Say an UFO seen flashing bright in the sky,looking like a star.If we are unable to find out aliens,then the other world must have been much more advanced than us.And their advancement just stopped to the same flashing objects (as far we are concenred,their are stealth planes have been developed).
2. How aften they have appeared on earth,without a trace of being landed.Do they come to have a picnic
3. These have never been noted by the air pilots.Only civilians are more bothered about the UFOs.
The science demonstrates the simliar situation occurs if we see a near by flying object reflected in vapours.
But hard to ignore the pictures taken by the citizens that fully shows an UFO.
So,let it be a rumoured fact.We get some topics to gossip in our lazy times Oooopsss.
