The popular name for them is “flying saucers”. UFO stands for “unidentified flying object”.
Do they really exist? Many books have been written about them and thousands of people claim they have seen them; some even claim they have photographed them. And no matter what scientific investigations reveal, they will still be people who believes they exist.
Studies of saucer reports show that UFO’s are very different from one another. Some people report having seen flat saucers; others see saucers shaped like spheres, cigars, or doughnuts.
The colours of saucers seem to be as different as their sizes. Saucers of nearly all colours have been reported. Some seem to change colour as they are being watched.
Saucers have been seen to move in every direction and at nearly every speed. They can turn at right angles, move straight up or straight down, or travel in a zigzag path. They can hang motionless in the air, and make either a hissing noise or roar.
When the united states air force started to investigate the reports about flying saucers, it discovered that people weren’t “imagining” what they saw. Everyone who reported a flying saucer had seen something. But what?
In some cases, the something was actually a weather balloon. In other cases, it was a satellite, a cloud, a meteor, a star, a bird, a comet, a planet,or fireworks. It was also what are called sun dogs. These are images of the sun reflected through ice crystals. Many flying-saucers stories have been traced to fireballs, which are formed by lightning.
If saucers were really spaceships, there would be a certain pattern in the reports about them. But there is no such pattern. The reason is that people are not seeing spaceships but many other things. So scientists believe that there is no evidence that we are being visited, watched, or invaded by intelligent beings from other worlds.