New structures on the moon have been discovered, could it be an Alien guardian station?

As NASA prepares for man’s first mission to Mars, it’s curious that it hasn’t set foot on the Moon since Apollo 17 (1972), let alone established a base there.
Many astronauts and researchers claim that this is because bases already exist on the lunar surface… and in fact, they would not be human bases.
Former NASA Communications Systems chief Maurice Chatelain confirmed in 1979 that Neil Armstrong and Buzz Aldrin saw two U̳F̳O on the edge of a crater during the Apollo 11 lunar mission in the summer of 1969.
“The encounter was common knowledge at NASA,” Chatelain said, “but no one has talked about it until now,” he added.
Is it possible that NASA has hidden knowledge of all bases on the Moon for the past 50 years?
In fact, much of this evidence is corroborated by the claims of several high-ranking officials, such as a former US Air Force employee named Karl Wolf, who happened to hold a “top secret” security license.
He revealed that an NSA official told him, “We have discovered a base on the back of the moon.” Wolf added: “And then he took out one of these [maps] and showed this base, which had geometric shapes.”
“There were towers; There were spherical buildings… they are huge. Some of the structures are half a kilometer long. They are huge structures,” she commented.
In other images, there are more than what appear to be giant structures that were taken during the Apollo 16 mission.
They include an elevated cylindrical structure, similar to a nuclear cooling tower, next to what could be a type of tower.
What makes all this evidence so compelling is the number of known astronauts who have made corroborating statements.
The sixth man to walk on the Moon, Apollo 14 astronaut Dr. Edgar Mitchell, shared this:
“After traveling in space, I am absolutely sure that the aliens are watching us. I don’t know how many, where and how they do it, but they look at us; we always see these ships”.
Apollo 11 lunar module pilot Buzz Aldrin backed up this claim with his own experience:
“I saw this light moving in relation to the stars. We were smart enough not to say, ‘Houston, there’s a light, there’s a light that follows us.’ So, technically, it becomes an unidentified flying object. ”
Could this be the real reason why the lunar surface has not been trodden or colonized since the last lunar mission?