Bridge on the far side of the moon (illustration NASA / GSFC / Arizona State University).
The Lunar Reconnaissance Orbiter has photographed two small … bridges on the lunar surface
Unusual formations are located on the far side of the Moon, near the King crater, which is about 75 km in diameter. As you can see, light from the right enters the left side of the depression under the bridge (see photo above) - which means that there really is a passage below. The second bridge is about half the size of the first and is located next to it; those who wish can try to find it in this image.
On Earth, natural bridges are formed as a result of water and wind erosion, but this mechanism apparently does not work on our satellite. Most likely, the main role here was played by the melt ejected from the King crater during the fall of a celestial body and formed a small “lake” 17 km in size nearby. On the surface of the "lake" the melt quickly solidified, but the inner region cooled for a very long time. According to scientists, at the site of the formation of the bridge, a local rise of magma occurred, leaving a cavity behind, and the collapse of the hard outer shell completed the process.
The smooth surface of the frozen "lake" at the King crater (illustration NASA / GSFC / Arizona State University).
The arch of the bridge looks pretty solid: the astronaut's weight is unlikely to be a problem for it. One problem is that it will be very difficult to verify these assumptions, since the United States is not going to send people to the moon.
