Many UFO hunters claim the Moon is covered in alien buildings, despite not being able to produce compelling evidence to back up the claims.
But Nasa images of the Lichtenberg crater area of the Moon show some of the buildings, according to believer Scott C Waring, editor of ufosightingsdaily.com.
He said: “I found this dark black structure today.
“These structures litter the surface of our moon and I have found tens of thousands, but reported only a few, because its difficult to find them in high quality photos so that they can easily be shared.
“This is a big one and near it is a small building.
“The stealth black of the building makes it radar resistant and it easily blends into the shadows.
“The ships are unlike anything you can imagine. They seem bio-mechanical (grown) because most are slightly uneven in in areas.
“It is very likely that these are ships, or buildings that can move from place to place, much like todays motorhomes on Earth, just 50,000 times larger.”
But Mr Waring has been ridiculed by more sceptical researchers for not only having no evidence to back up his theories on what the “buildings” are, but also because they claim the images highlighted include nothing that looks anything like a building.
Scott Brando, who runs hoax-busting website ufofofinterest.org, said: “I see just rock formation and craters, it takes a lot of fantasy to see a building.”
Mr Waring is one of many UFO believers who claim the Moon is occupied by aliens.
In his book, Our Forbidden Moon, astronomer David Bryant investigates if spaceflight beyond low-earth orbit is prevented due to hostile aliens living on the Moon.
The lecturer, who sells and collects meteorites, spent 15 years researching the subject and believes the Moon may already be occupied.