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This section contains descriptions of unexplained facts provided by eyewitnesses or published in the media, as well as the results of their analysis by the group.

UFO. Russia

ID	#1635697179
Added	Sun, 31/10/2021
Author	July N.
Sources	urbibl.ru Антонина ЗАЙЦЕВА «Уральский следопыт» №8-9, 1996 г.
Phenomena	UFO
Status	Investigation

Initial data

Initial information from sources or from an eyewitness

Incident date:

31.05.1928

Location:

Калуга

Kaluzhskaya oblast

Russia

One of the first was observed on May 31, 1928. K.E. Tsiolkovsky was standing on the balcony and almost at the horizon saw the letters "chAu" lying horizontally, composed of clouds. There was something like a slab or tomb under the cloud layer. They did not change their shape, but while Tsiolkovsky went into the room to get paper, the word disappeared. Tsiolkovsky understood it this way: after death, the end of our torments.

Hypotheses

List of versions containing features matching the eyewitness descriptions or material evidence

Cloud (natural and man-made)

Clouds are the products of condensation of water vapor suspended in the atmosphere, visible in the sky from the surface of the earth. They consist of tiny drops of water and/or ice crystals (called cloud elements).

Investigation

Versions testing, their confirmation or refutation. Additional information, notes during the study of materials

The date is not specified, but it is known that in 1879 he passed the exam for the title of people's teacher and taught mathematics and physics in schools until 1921Borovsk and Kaluga, in parallel trying to interest the scientific community with their projects of airplanes and an all-metal airship, and later - rocket technology.