Ufo is a science that study Aliens, E.Ts. and wild that dont live where in the Earth! Where they are? Where they live? In History Channel we have a documentary about this, person eyerwaitnesses, and serious scientists debate about this. I believe in Aliens, ETS, we never are alones in our Universe. Why think us tha we are alone? - many people.
I am spiritist and I afirm: we aren't alone.
Exist spiritis others star encarnates here, together with us!!! For exemple: Capela's Spiritis!!
