Why are people interested in UFOs?

UFOs or unidentified flying objects are the those flying objects which are believed to be from other planets or space to earth. people are interested more to know about these IFOs, because it throws lights towards the unknown truth of universe about living creatures in the universe like Aliens, life exists in other planets and their origin. it will change the present concepts that wat we believe. recently pictures of NASA exposes their new image of an women.. its required to explore about the world to know the truth of the universe.