For decades, scientists have puzzled over the Moon’s strange anomalies: its unusually low density, seismic activity, and the bizarre structures on its surface. Some theorists speculate that advanced extraterrestrial civilizations constructed the Moon millions of years ago as a base or observation post.

Others believe it was created by a highly advanced human civilization that once existed on Earth. Some suggest it was a massive spaceship designed to transport beings across the cosmos. Others believe it serves as a repository of knowledge or a weapon of unimaginable power.