PROBLEM TO BE SOLVED: To enable human beings to live on the moon and to utilize the moon for the earth. SOLUTION: The vertical hole and the horizontal hole of the moon are utilized. A cosmic ray defense plate 9 that blocks roof-shaped radiation, meteorites, and the like 8 is provided on the elevator 5 and the stairs 4 provided in the vertical hole 2 of the moon. Since the moon obtains light not only from the sun but also from the earth, if it is used as a solar power generation panel, it can also be used to generate electric energy used by the moon. Similar to the vertical hole protective plate 9, a horizontal hole upper protective plate 10 for preventing cosmic rays and the like 8 from entering the cavity 6 is provided on the horizontal hole 6 of the moon. 11 is the entrance to the stairs. The staircase 4 may be a spiral staircase or a folded staircase. 12 is an outside entrance / exit of the elevator, 13 is an elevator cage, and 14 is an entrance / exit inside the elevator cavity. [Effect] Houses, towns, factories, and hospitals can be constructed without fear of cosmic rays and ultraviolet rays, and humankind can live in peace on the moon. In addition, it supplies energy to the earth to make up for the shortage of earth energy, and the energy does not pollute the global environment. [Selection diagram] FIG. 4
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