There are four dominant hypotheses debated by scientists that attempt to explain the existence of the Earth’s moon. Following is a brief summary and explanation of why these theories fall short.
1. The Fission Theory
Postulate: The early Earth was spinning very fast, at least ten times its present rate, and the powerful centrifugal force caused a piece of the earth to tear away and became the moon.
Problem: The first problem with this theory is that there is no obvious means to explain how, or why, the earth lost all of its rotational energy. In addition, Moon rocks were materially different in elements such as iron from Earth rocks. Finally, if the Earth was spinning fast enough to jettison the Moon, it would have also burned off all of the water on the Earth’s surface.
2. The Nebula Theory
Postulate:This theory speculates that the Moon and the Earth formed near one another from colliding planetesimals formed in the early Solar System.
Problem: The problem here is again that the Moon rocks and Earth rocks have substantially smaller amounts of iron. In addition, there is no rationale for why the Earth, begin the larger body, would not simply have capture all of the planetesimals that formed the moon.
3. The Capture Theory
Postulate: The Moon formed somewhere else in the universe, and was captured by Earth’s gravitational field.
Problem: The problem here is one of physics. There is no model that explains how the Earth was able to capture the Moon into a sustainable orbit without the Moon either colliding into the earth, burning up, or being flung away.
4. The Giant Impact Hypothesis
Postulate: An asteroid the size of Mars struck the earth, ejecting large volumes of matter. The heavier materials, including iron, settled back to the earth and the other materials orbited earth, initially as a disk, and eventually coalesced to form the Moon.
Problem: The most significant problem with this theory is that if an asteroid the size of Mars struck the Earth, it would have knocked the Earth out of solar orbit. In addition, sample’s from the Moon’s surface contained some water. This would be impossible given the parameters of this theory. This theory requires an extreme amount of fine tuning that makes it highly improbable to impossible.
2 Old Moon Problems
In addition to the problems with the four theories above, there are fundamental problems with all of these models related to the tidal influence of the moon upon the earth. The moon’s distance and rotation around the Earth creates a tidal gradient that impacts the flow of our oceans. Lunar Laser Ranging (LLR) experiments which began during the Apollo missions indicate that the moon is slowly moving away from the Earth at about 1.5 inches per year. Mathematically, this means that only 1.5 billion years ago the Moon would be touching the Earth, but evolutionary models indicate that the Moon has been orbiting the Earth for at least 4 billion years. These old-earth models have difficulty dealing with the LLR data of a receding Moon.
Finally, anomalous events, such as radon gas emissions from craters, indicate geological activity on the Moon. A body the size of the moon should have completely cooled over the eons leaving no molten regions inside. However, the observed volcanic activity on the moon vitiates the billions of years required by current evolutionary models.
The heavens declare...
A great place to start your own study of astronomy and cosmology is this series by Spike Psarris who was previously an engineer in the United States’ military space program. He entered that program as an atheist and an evolutionist. He left it as a creationist and a Christian. His website, and these 3 videos, help explose the bankruptcy of the evolutionary model, especially in astronomy.