The ufologist, known in UFO circles as Streetcat1, found the same unusual object in three different photographs from the moon (see video below).
The photographs taken by the Chinese lunar rover "Chang'e-3" show a large black rectangular monolith located at the very horizon of the Moon, presumably 400 meters from the shooting location.
In the comments to his video, the researcher says that when looking at the first photo, he thought it was a missing pixel. However, the same anomaly was present in the following frames.
When the image was zoomed in, it turned out that the unusual object not only has a geometrically correct shape, but also casts a shadow on the lunar surface.
According to some fans of the tireless seeker of cosmic mysteries, this strange structure may be the entrance to the sublunary alien base. And one of the viewers suggested that the Tardis, the spaceship and time machine from the British television series Doctor Who, which looks like a black police box of the 60s of the last century, seems to have fallen on the moon.
Voronina Svetlana