Extra Terrestrials

I do agree with the saying "to see is to believe" because it is hard to tell if something is true without seeing or experiencing it. For now, I do believe that extra terrestrials just existed in our imaginations but not in the real world.
The universe has many mysteries that are not yet known to man and not yet proven science. Many questions are still not answered by science. "Are there anyone other than us?" is the most frequently asked question.
It is assumed that extra terrestrials or aliens are life forms that are from other planets. …