Moon

The Moon is one of Earth's natural satellites.

Overview
The Moon is an astronomical body that orbits the Earth. 1 gram of moon rock is worth about 600,000 yen.

Alien Conquerors Arc
Boros kicks Saitama to the moon. Saitama jumps back to Earth and leaves a crater on the moon.

Monster Association Arc
A shot of the moon with the crater can be seen when Brave Giant is using his Millenium Emperor Nova.

Chapter 37 Bonus
Saitama finds a small piece of rock from the moon in his shoe. Discovering its high value, Saitama goes to sell it off only to drop it. Saitama and Genos spend the day looking through the gravel to find the Moon rock.