
The Moon Is an Alien Spacecraft
A persistent fringe theory claims the Moon is actually a gigantic artificial structure placed in orbit by extraterrestrials. Supporters often point to unusual interpretations of seismic data from Apollo missions.

Aliens Live Underground
According to some conspiracy theorists, extraterrestrials are not visiting Earth from distant planets. Instead, they supposedly reside in vast underground bases hidden beneath deserts, mountains, or remote regions.

The Hollow Earth Connection
Some believers combine UFO lore with Hollow Earth theories, claiming advanced alien civilizations inhabit enormous underground worlds beneath the planet’s surface and occasionally emerge through hidden entrances.

Reptilians Rule the World
Popularized by David Icke, this theory claims many world leaders are shape-shifting reptilian beings disguised as humans. The alleged extraterrestrial species supposedly manipulates humanity from positions of power.

Ancient Gods Were Aliens
Many conspiracy theorists argue that deities from ancient mythologies were actually extraterrestrial visitors. Stories of powerful gods descending from the sky are interpreted as misunderstood alien encounters.

Aliens Control Human Evolution
Some theories propose that extraterrestrials genetically altered early humans. According to believers, alien intervention explains humanity’s rapid intellectual development compared to other species on Earth.