The enigmatic object was captured on film recently in Sydney, Australia. It appears as though a can of dark paint exploded at a low altitude, and the suspended particles froze in mid-air.
The object is not completely motionless, you can see in the video that it seems to “flow” a little bit, but it does not fall down, does not rise and does not move to the sides.
In the social networks where this video is distributed, many joke about the Dementor (a character from “Harry Potter”) or the alien “slime invader”.
More serious commentators believe that this is either video editing or a really very unusual natural or man-made phenomenon.
There is a theory that this is some kind of rare storm cloud or the remnant of a small tornado.