I just retired from the U.S. Air force as a Lieutenant Colonel and I was talking to a neighbor who said she believes in UFO's and Space aliens are real. Well, I can tell you all this; Our Government want's you to believe in that! There are many things tested, flown and objects that are not in the public view, "per-say" and they most definitely want you to believe that. It keeps the press and people from snooping where they don't belong. After 17,000 hours of flight time, knowing 3 astronauts personally and have flown to 50+ countries, I can assure you their not here! Other Galaxies, maybe..