Read Ancient Aliens on the Moon Online
Authors: Mike Bara
Artists depiction of the capture theory. (NASA)
So, having pretty much struck out by the late 1970’s, the planetary scientists began to seize on a new theory of how the Earth-Moon system formed; the “Big Whack” theory.
Re-dubbed the Giant Impact Hypothesis, this new idea said that a large, Mars sized object struck the Earth sometime in the distant past (about 4.5 billion years ago, by most estimates). This impact ejected a huge amount of material off the Earth and into the Moon’s orbit, where it cooled, coalesced and formed a completely new body we know today as our sister Moon. This massive object is sometimes called
Thea
, after the Greek Titan that was the mother of Selene, the Moon goddess of ancient Greek mythology. Advocates of the Giant Impact Hypothesis (let’s just call it the GIH from now on) point to what they argue are several lines of evidence to support it. Primary among these are that the Earth’s and the Moon’s orbit are in the same direction (possibly indicating they had a common origin point in the solar system), and the fact (derived from moon rocks brought back the Apollo astronauts) that the lunar surface was once nearly entirely molten.
Of course, there are also problems with the GIH. First, an impact such as the one required to make the GIH work would have probably melted the entire surface of the Earth into a molten magma ocean, at least for a brief period of time. Since there is no geologic evidence that such a global melt ever took place, that finding in of itself pretty much shoots down the GIH theory. Further proof that the GIH is wrong was recently found in the study of titanium oxygen isotopes from the Moon, Earth and meteors. The study, which is kind of a planetary paternity test, found that Moon rocks and Earth rocks had virtually identical oxygen isotopic ratios, meaning that the Earth and Moon are chemically exactly the same. This has two implications; first that the Moon formed
from
the Earth, and second that there was no giant impacting body that struck the Earth and formed the Moon. If there was, the oxygen isotopic ratios of the Earth and Moon would be different, since it is virtually guaranteed that an object which formed elsewhere in the solar system would not have identical ratios to the Earth’s. In other words, if Thea had truly struck Earth, Thea and Earth’s chemicals and elements would have mixed when the Moon formed, and the Moon would be a compositional mixture of the two. It is not. It is exactly like the Earth, meaning it either formed near the Earth, or was somehow broken away from it.
So much for Thea and the GIH.
Unfortunately, this leaves us without a single viable working theory for how the Moon formed. Or at least, it leaves the planetary geologists and astronomers without one. Fortunately, just as I did in my previous book
The Choice
, I’m here to sort things out for the planetary geologists and give them a new and more likely theory they can hang their hat on. It’s called the Solar Fission Theory.
The Solar Fission Theory, chiefly advocated by the late Dr. Tom van Flandern in his book
Dark Matter, Missing Planets and New Comets: Paradoxes Resolved, Origins Illuminated
, argues that the Sun spins off the planets from its belly very early in its life-cycle, and that the planets subsequently give birth to their moons in the same manner. As I described it in
The Choice:
“In the solar fission model, once the biggest chunk of the solar nebula collapses and begins nuclear fusion (ignition into a star), it starts sucking up all the nearby dust and gas and it quickly grows in size. By adding all this fuel to its nuclear furnace, it soon begins spinning so fast that the centrifugal forces become stronger than the gravitational field of the newborn star. At this point, the star “oblates,” or bulges at the center, and solar material is flung out from the equatorial region of the young star. This material then spirals outward in (roughly) twin pairs, forming first gas giant planets and then later “terrestrial” or rocky planets like our Earth. As the star gives birth to pair after pair of twins in this manner, its angular momentum (spin energy) dissipates and the star begins to emit energy in a stable cycle ideal for supporting life giving planets. As the blobs of ejected “star stuff” spiral away from their birth mother, they also give birth in turn to their own moons, and eventually find their resonant orbits and begin to cool. After a billion years or so, the whole system should achieve a state of equilibrium and balance. The planets will cool. On some of them in the habitable zone, like Venus, Earth or Mars, water will form oceans, bacteria will start the cycle of life, and the children of this elegant birthing process will eventually walk the face of these planets, stare into the night sky, and wonder how they got there in the first place.”
The theory then goes on to explain that large gas giant planets like Jupiter and Saturn will tend to spin off multiple moons (in roughly twin pairs) and smaller terrestrial planets like Earth and Venus will tend to spin off only one large moon, much like we see in the Earth-Moon system. In van Flandern’s model, Earth and the Moon are an example of such a pairing, and so are Venus and Mercury, with Mercury having been ejected from its orbit around Venus by some ancient impact.
The chief objection to the idea that the Moon broke off from the Earth was the fact that it would take far more spin energy than the current Earth-Moon system possess to actually break a chunk of solid Earth off. The Solar Fission model also solves this problem. In van Flandern’s model, the Moon didn’t break away from the primordial Earth
after
it cooled and solidified, it spun off out of the early
molten
Earth. This would also explain why the Moon is made up primarily of material from the Earth’s lighter mantle, rather than the heavier iron-rich core. The only observation that isn’t accounted for is the fact that the Moon’s orbital plane is inclined by 5.14° to the Earth’s. However, there could be numerous explanations for this (like later impacts which forced the Moon to a different position) and so this is not a show–stopper for the theory.
What does appear to be certain is this; whatever the Moon’s origins, it appears to be either formed from the Earth itself or very nearby at the same time as the Earth, 4.5 billion years ago. Fanciful stories of it being a celestial body from another part of the solar system (or the galaxy) that was “driven” here and placed into orbit are most likely wrong. That does not however preclude it from being inhabited or modified much later in its evolutionary process. For instance, sometime after life began on Earth.
Almost from the dawn of human history, the ancients studied the Moon and began to unravel its secrets. The ancient Greek philosopher Anaxagoras (4
th
century BC) speculated that the Sun and Moon were both giant spherical rocks, and although he got that wrong, he did correctly surmise that the Moon was visible because it was reflecting the light of the Sun. The Chinese astronomer Shi Shen published instructions for the predictions of both lunar and solar eclipses in the 4
th
century. Jing Fang (78–37 BC), of the Chinese Han dynasty, also correctly predicted that the Moon was spherical. In the 2nd century BC, Seleucus of Seleucia correctly theorized that tides were due to the attraction of the Moon, and that their height depended on the Moon’s position relative to the Sun. Ptolemy of Egypt (90–168 AD) calculated the distance of the Earth to the Moon and its size relative to the Earth with amazing accuracy. He calculated the Moon was at a distance of 59 times the Earth’s radius and had a diameter of 0.292 Earth diameters. The actual values are 60 and 0.273 Earth diameters. Babylonian astronomers were the first to record the 18-year cycle of lunar eclipses in the 5
th
century AD. In 499 AD, the Indian astronomer Aryabhata stated in his journal the
Aryabhatiya
that reflected sunlight is what causes the Moon to shine.
That all of this was discovered or accurately predicted before the invention the telescope is somewhat astonishing. By the time Galileo Galilei made his first drawings of the Moon from his telescopic observations in 1609, most of the world had come to believe that while the Moon was spherical, its surface was probably glass smooth. Galileo was the first to truly insist that it was in fact made up of mountains and valleys – much like the Earth – and that the deep craters visible on its pockmarked surface were probably the results of volcanic activity (which some are) or massive impacts.
Transient Lunar Phenomena (TLP) visible on the Moon. (NASA)
Through this same time period, observers began to note what appeared to be temporary changes in the surface appearance of the Moon. These “Transient Lunar Phenomena” (TLP’s or LTP’s for short) are usually noted as observations of changes in the color or reflectivity of the lunar surface. Since the 1600’s, observers have cataloged at least 579 separate observations of TLP’s, according to one NASA report.
5
Most of these events last anywhere from a few minutes to a few hours (hence the “transient” part of the designation) and have a tendency to cluster around certain areas of the lunar surface. The craters Alphonsus and Aristarchus are the two most commonly mentioned in the literature.
Descriptions of TLP’s range from foggy patches to what appear to be mist-like or cloudy formations or other forms of obscuration of the lunar surface. Changes in coloration ranging from red, green, blue or violet have been noted, as have areas of increased brightness or areas of increased darkness. Two extensive catalogs of TLP’s exist, with the most recent cataloging some 2,254 events going back to the 6th century. Of those that are considered the most reliable reports, about 1/3 come from the vicinity of the previously mentioned Aristarchus plateau.
Wikipedia lists some of the more well-known examples of TLP reports as follows: