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This is supposedly a picture of two fighters chasing a UFO.
Alien and UFO sightings are something that happen now and then and sometimes show up on the news. I’m old enough to have gone through the stories of Area 51, Barney and Betty Hill, and even back to Roswell. I have listened with interest to the accounts of each of these stories and many more. I even attended a speech by one of the foremost UFO hunters in 1981. All the information is compelling but I always go back to some simple math and logic.
I would have to say that there are actually two answers to this question. The first answer is almost assuredly yes. The analysis of distant star systems is discovering more planets every year. We are getting very close to discovering terrestrial planets with viable atmospheres. We have studied the tiniest portion of the stars in the galaxy. Math is definitely on the side of there being a planet that can support life. There are just too many chances for the creation of sentient life when you’re working with tens of billions of stars. In my opinion there are likely to be many sentient races in the galaxy.
I believe the next part of the question is have they come to Earth? On that question I have more doubts. As I mentioned earlier I have been around to hear the stories since Roswell and they all fascinated me, but they didn’t convince me. The same math that convinces me that there are likely to be many sentient life forms in the galaxy also convinces me that it’s not likely that they just pop over to Earth now and then to say hello. The one thing that is vaster than the number of stars in the galaxy is the distance between the stars. It would take 2.3 years to get to the nearest star traveling at the speed of light; even allowing for the time delineation. Alpha Centauri is 4.3 light years away but funny things happen to time when you approach the speed of light.
Until recently no one could come up with a way to get matter to the speed of light without violating the basic laws of physics. There are now articles describing being able to accelerate a payload close to the speed of light using an anti-gravitation beam. I don’t have the background to understand the specifics but this idea gets us close to the speed of light; that means the nearest star is still more than 2.3 years of traveling away.
Theoretical physicists are now studying the possibility of warp fields and worm holes. To avoid being closed minded I will say as lo+
ng as there is a scientist that still believes these theories are possible; then I believe they are possible. Even by the most optimistic measures; if a warp field or a worm hole can be used as a means of travel that it would require a technology many centuries ahead of ours.
We are now pretty darn sure that humanity is the only sentient life form in our solar system. Any visitors coming to Earth would have to travel from another solar system. Thanks to the Hubble Telescope we are able to survey the star systems in our little corner of the galaxy. At this point we’re also sure that there are no viable planets that can sustain sentient life within ten light years and likely a whole lot more. If a space ship can travel at the speed of light it would take somewhere around six years, including time delineation, to get to Earth from a planet ten light years away. That is a long time to travel just to show up, dance around in the sky and go away. If they are advanced enough to have worked out the use of a warp field or a worm hole then it may be possible. If a life form is that advanced we wouldn’t be much more than a curiosity to them.
There have been many pictures and videos of UFOs flying over one place or another and many accounts of very creditable people seeing things that they can’t explain. I have a hard time believing pictures and videos because of the ease of faking that sort of thing. I do believe people when they say the saw something. I was told of something that happened many years ago. A fellow I knew was driving toward Dulles Airport outside Washington, DC when he saw something odd in the sky. This was before that area was built up and he was on a lonely part of the road. He saw a set of lights that moved very slowly across the sky. He pulled his car off the road and got out to watch the UFO. It traveled slowly and there was no sound indicating it was being propelled by any kind of aircraft engine. He was about to jump in his car to find the nearest phone when the rest of the craft’s lights came on as it approached the airport. It was the Goodyear Blip coming in to cover a football game. My friend had indeed seen a UFO. A UFO is an Unidentified Flying Object and that what is was until he identified it. If those lights had not come on before he drove off; it would have always been a UFO to him.
This is a picture I took out of the window of our stateroom on a cruise ship. We were entering the port of Cartagena in Colombia. Do you see the strange disk in the sky? That disk is a reflection of the ceiling light in our room.
All of this rambling boils down to an answer of I don’t think we have regular visits from aliens, but I won’t say absolutely no. You can’t prove a negative; you can’t prove that it is not happening, but in my opinion no one has proved that it has happened.