Is the Moon an Alien Space Station?

In the 1960, several scientists put forward the "theory of the hollowness of the moon". Later, in the early 20th century, there was a science fiction novel, "The First Man on the Moon", and this novel wrote the story of the hollow moon. , Since then, the "hollow of the moon" has become very popular.

Today, there are still many people who support the "hollow moon theory". Some people think that the moon is hollow, and the inside is the base of aliens; some people think that the moon is a super large metal ball, and the rock layer on the surface is a shelter. Observe human.