The most common UFO's sightings are silver colored disc-shaped non-conventional aircraft. These have one antigravity core in the middle and are charged by negative energy from mountain scholars. These aircraft even overcome earthquakes by taking away the negative energy. These aircrafts are common seen in past history and even been painted by artists.
Make a search with google ''ufo in paintings'', images and you will see. I don't have a clue how they travel between: past-future, future past.
Make a search with google ''ufo in paintings'', images and you will see. I don't have a clue how they travel between: past-future, future past.