Alien & UFOScience & Nature

Could The Moon Be Hollow And Inhabited By Aliens?

The Spaceship Moon Theory, also known as the Vasin-Shcherbakov Theory, is a theory that claims the Earth‘s moon may actually be an alien spacecraft.

The theory was put forth by two members of the then Soviet Academy of Sciences, Michael Vasin and Alexander Shcherbakov, in a July 1970 article entitled “Is the Moon the Creation of Alien Intelligence?”.

In 1976 George H Leonard published Someone else is on the Moon in which he reprinted numerous NASA photographs of the lunar surface and suggested that large scale machinery was visible in these pictures. Readers have generally not been able to see these artifacts.

On November 20, 1969, the Apollo 12 crew jettisoned their lunar module ascent stage causing it to crash onto the moon. The impact (about 40 miles from the Apollo 12 landing site) created an artificial moonquake with startling characteristics: the moon reverberated like a bell for more than an hour.

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This phenomenon was repeated with Apollo 13, which allowed its third stage to impact the moon, with even more startling results. Seismic instruments recorded that the reverberations lasted for three hours and twenty minutes and traveled to a depth of twenty-five miles. This means that the moon has an unusually light, or possibly no, core.

“What in blazes is our Moon doing way out there? It’s too far out to be a true satellite of Earth , it is too big to have been captured by the Earth. The chances of such a capture having been effected and the Moon then having taken up a nearly circular orbit about the Earth are too small to make such an eventuality credible. . . . But, then, if the Moon is neither a true satellite of the Earth nor a captured one, what is it?”

– Isaac Asimov, Asimov on Astronomy,” Doubleday, 1974; Mercury Press 1963; also quoted in Don Wilson’s book, Our Mysterious Spaceship Moon (1975).

Currently there are around 5 widely discussed theories of Moon formation. They are as follows:

1.) Capture – This theory proposes that the Moon was captured by the gravitational pull of the Earth.

The one main problem is the capture mechanism. A close encounter with Earth typically results in either collision or altered trajectories. This hypothesis has difficulty explaining the essentially identical oxygen isotope ratios of the two worlds.

2.) Fission – This theory states that during a time when the Earth was forming and was still molten, the spinning of the planet projected out material which became our moon today. The Pacific Ocean was supposedly the area where the Moon came from, however this was debunked considering the immaturity of the ocean floor crust and the knowing that the moon formed much longer ago.

3.) Accretion – This hypothesis states that the Earth and the Moon formed together as a double system from the primordial accretion disk of the Solar System. The problem with this hypothesis is that it does not explain the angular momentum of the Earth-Moon system or why the Moon has a relatively small iron core compared to the Earth (25% of its radius compared to 50% for the Earth).

4.) Georeactor Explosion – A more radical alternative hypothesis, published in 2010, proposes that the Moon may have been formed from the explosion of a georeactor located along the core-mantle boundary at the equatorial plane of the rapidly rotating Earth.

5.) The Giant Impact Theory – This was the most commonly accepted theory up until recently. This theory suggests that long ago a planetary body the size of Mars crashed into Earth expelling a large piece of mass into space which became our Moon.

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While this hypothesis explains many aspects of the Earth-Moon system, there are still a few unresolved problems facing it, such as the Moon’s volatile elements not being as depleted as expected from such an energetic impact. Another issue is Lunar and Earth isotope comparisons. In 2011, the most precise measurement yet of the isotopic signatures of lunar rocks was published.

Surprisingly, the Apollo lunar samples carried an isotopic signature identical to Earth rocks, but different from other Solar system bodies. Since most of the material that went into orbit to form the Moon was thought to come from Theia (the name scientists gave to the impactor), this observation was unexpected. In 2007, researchers from Caltech showed that the likelihood of Theia having an identical isotopic signature as the Earth was very small (<1 percent).

Published in 2012, an analysis of titanium isotopes in Apollo lunar samples showed that the Moon has the same composition as the Earth which conflicts with the moon forming far from Earth’s orbit.


The Moon’s mean density is 3.34 gm/cm3 (3.34 times an equal volume of water) whereas the Earth’s is 5.5. What does this mean? In 1962, NASA scientist Dr. Gordon MacDonald stated,

“If the astronomical data are reduced, it is found that the data require that the interior of the Moon is more like a hollow than a homogeneous sphere.”

Nobel chemist Dr. Harold Urey suggested the Moon’s reduced density is because of large areas inside the Moon where there is “simply a cavity.”

MIT’s Dr. Sean C. Solomon wrote,

“The Lunar Orbiter experiments vastly improved our knowledge of the Moon’s gravitational field… indicating the frightening possibility that the Moon might be hollow.”

In Carl Sagan’s treatise, Intelligent Life in the Universe, the famous astronomer stated, “A natural satellite cannot be a hollow object.”

Therefore, the Moon may not be a “natural” satellite at all.

“On the edge of the Sea of Storms is a strange opening that leads down into the Moon. Dr. H.P. Wilkins, one of the worlds leading lunar experts before his untimely death a few years ago, was convinced that extensive hollow areas did exist inside the Moon, perhaps in the form of caverns, and that these were connected to the surface by huge holes or pits. He discovered such an opening himself a huge round hole inside the crater Cassini A.

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This crater is one and a half miles across, and the opening leading down into the Moon is over 600 feet across more than two football fields laid end to end. Wilkins writes in his definitive work, Our Moon: Its inside is as smooth as glass with a deep pit or plughole, about 200 yards across at the centre. ”

The fact that the Moon was once, of necessity, a planet in its own right, along with fact that evidence points to the Moon being hollow, could be an interesting piece of evidence in favor of the Hollow Earth Theory. (This theory holds that, not only our Earth, but ALL planets are formed hollow.) Therefore, the fact that the Moon is hollow does not necessarily mean that it is a spaceship fashioned by Aliens.

It could simply mean that the Hollow Earth Theory is, indeed, correct, and that all planets are, in fact, formed hollow; the Moon having once been its own planet, until its relatively recent capture by the Earth.

Many scientists opposed to the idea of a hollow moon argue that the lunar crust would have to be extremely dense in order to support the theory – based on the behavior of objects interacting with the moon’s gravitational field.

This is something that makes sense – if you are thinking in context of the moon being a 100% natural body. One thing you have to take into account though, is that scientist to this day still have no solid claims as to where the moon actually came from.