Why is it said that the gourd-shaped conjoined UFO is a cloud or aurora borealis phenomenon?

At 8:00 pm on February 13, 1984, two meteorological observers (one surnamed Zhang and the other Feng) in Genhe, Ergun Right Banner, Inner Mongolia were observing the sky when they discovered that on the north bank of the Milky Way There are two huge bright spots connected together in the sky, which is very strange. After a while, two connected luminous objects slowly flew towards them. When I flew closer, I saw that they were of different sizes, shaped like gourds. The large one was 2 meters in diameter, and the small one was about 1.5 meters in diameter. They were connected in the middle, with the big one in front and the small one in the back. They all emitted light like fluorescent lights. milky white light. It floats silently in flight, does not rotate on its own, and does not change shape or size, just like a two-section balloon that children play with. Five minutes later, they flew to a high altitude in the direction of Shangkuli and flew towards Heilongjiang Province...

This kind of gourd-shaped UFO was discovered several times in the summer of 1984, and some people even I took a picture. Whether this conjoined UFO is a real flying saucer or a special-shaped Northern Lights phenomenon is still a mystery.

There is a place called Qingzhen near Guiyang City. Not far to the northeast is the charming Qianlu Mountain. In March 1983, on a sunny morning, a group of tourists saw a strange thing floating on the top of Qianling Mountain.

Du Shengbao, a self-employed landscape photographer in Qianlu Mountain, said: The air was particularly refreshing that day and the sky was blue and transparent. A group of tourists from Guiyang came to the mountainside laughing, singing songs, taking photos, and having a good time. Suddenly, a girl shouted: "That cloud on the top of the mountain is so weird!" Everyone looked towards the sky, and there was indeed a gourd-shaped white cloud floating under the blue sky, with fluffy surroundings, and it looked soft and floating, which was very strange. "Where is the cloud? It may be a flying object! Look at the top of it flashing with white light!" The words of a young man who seemed to have done a lot of research on UFOs made the more than 20 people present immediately become silent. So, the young man added: "On November 17, 1974, someone took a photo in Viberg, Denmark. A UFO covered itself with clouds and fog, but an oval black object could be seen through the fog. We The cloud in front of me is very strange. If you look carefully, there is indeed a lens-shaped entity inside. "Everyone talked a lot, thinking that there was indeed an object hidden in the cloud. This cloud drifted to the southwest with the northeast wind and disappeared after a few minutes.

Is it a cloud or a UFO? People have been confused.