Can anyone tell us a little bit about UFOs?

UFO stands for Unidentified Flying Object Chinese for Unidentified Flying Object. In ancient China, UFOs were also known as Xingcha. Unidentified aerial flying objects, the term UFO originates from the saucer-shaped flying objects witnessed during World War II, although UFOs are not all saucer-shaped, and some have other shapes, but after all, there is no literature to clearly define UFO, before UFO was clearly defined, it belonged to UFO.

There are more than 350 more complete sightings before the 20th century. According to eyewitness reports, UFOs are mostly disc-shaped, spherical, and cigar-shaped, and some are club-shaped, spindle-shaped, or ray-shaped. Since the end of the 40s of the 20th century, UFO sightings have increased dramatically, causing controversy in the scientific community.

Scientists who take a negative view believe that many sightings are not credible, that UFOs do not exist, and that they are simply hallucinations or eyewitness interpretations of natural phenomena. Affirmers believe that UFOs are a real phenomenon that is being confirmed by more and more facts. By the 80s, there had been about 100,000 sightings worldwide.

UFO sightings and sightings can be divided into 4 categories: daytime sightings; night sightings; radar imaging; Close encounters and related physical evidence. Some of the sightings were also filmed as **.

There are various interpretations of UFOs, among which are: 1a natural or living phenomenon that has not yet been fully recognized; 2.

misidentification of known objects, phenomena or living matter; 3.hallucinations, psychological phenomena and deception of some social groups or individuals in a specific environment; 4.The product of a highly extraterrestrial civilization.

5.Caused by alien manipulation. 6.

Intelligent flying objects or flying machines that people cannot make and fully recognize by themselves. 7.Ghosts manipulate vehicles that come to the world to ask for their lives.

UFO studies are being conducted in many countries around the world. There are more than 350 monographs on UFOs and nearly 100 journals. A group of experts from all over the world participated in this work.

China has also established a non-governmental academic research group dominated by scientific and technological workers, the China UFO Research Association. Flying Saucer Exploration, a popular science publication on UFOs in China, was founded in 1981. In 1947, Kenneth Arnold, a businessman from Idaho, USA, was flying a private plane through the Cascade Mountains in Washington State when he saw nine UFOs and called them plates that looked like they were flying from the surface of the water or suspiciously, hence the name of the flying saucer.

A few days later, on July 4, Roswell, New Mexico, USA, discovered the crashed alien spaceship, the mysterious metal fragments of the victims. This is the first comprehensive UFO report since the beginning of the Industrial Revolution.

Resources.

UFO refers to a non-identified flying object and does not directly refer to a flying saucer. Anything that flies in the sky as long as it doesn't know what it is can be represented by a UFO.

UFOs are alien flying saucers.

UFO stands for Unidentified Flying Object, also known as Unidentified Flying Object (UFO) refers to an object of unknown origin, unknown space, unknown structure, and unknown nature, but also floating and flying in the air. Some believe that it is a spaceship from another planet, while others believe that UFOs are a natural phenomenon. Beginning in the 40s of the 20th century, saucer-shaped flying objects were discovered over the United States, then called "flying saucers", which was the beginning of contemporary interest in UFOs, and later people looked at UFO reports around the world, but no credible evidence has been found so far.

Many UFOs** have been identified by experts as **, and some are believed to be ball lightning, but there are always some discoveries that cannot be explained by existing scientific knowledge.