English Dictionary

ancient astronaut

noun

Any of the extraterrestrial beings that, according to the pseudoscientific belief of paleocontact, visited Earth in the distant past, influencing human culture, technology, or religion.

Many people believe that ancient astronauts visited Earth in the past.

意味（1）

Any of the extraterrestrial beings that, according to the pseudoscientific belief of paleocontact, visited Earth in the distant past, influencing human culture, technology, or religion.

Is it possible for scientists to demonstrate that ancient astronauts have ever been here? No.