Archive · 10 Sep 2026
Five-Hour Moon Formation Theory Sparks Biblical Creation Debate
Scientists studied how the Moon may have formed after a large planet hit Earth.
The planet was about the size of Mars and is called Theia.
The researchers ran computer simulations of the collision.
One simulation showed that a complete Moon could form in about five hours.
Earlier ideas suggested that the Moon formed more slowly from melted or vaporized material.
The new simulations also considered how strong and hot the rocks and metals were.
Some people online said this resembles the Bible’s story about lights being placed in the sky.
The Bible passage describes a greater light and a lesser light ruling the day and night.
The study itself focused on explaining the Moon’s formation through a scientific model.
Simulations found that the Moon may have formed within about five hours of a Theia-Earth collision.
The collision occurred approximately 4.5 billion years ago, according to the study’s scenario.
Researchers included the strength and temperature of rock and metal in the colliding bodies.
The study was conducted by scientists from the Southwest Research Institute and the University of Arizona.
Some social media users said the findings match the Book of Genesis, while the study itself addresses lunar formation scientifically.
- Who
- Scientists from the Southwest Research Institute and the University of Arizona conducted the simulations; social media users commented on their religious implications.
- What
- A study found that one simulation produced an intact Moon within approximately five hours after a Mars-sized body collided with Earth.
- When
- The collision in the study occurred about 4.5 billion years ago, with the Moon forming roughly five hours afterward in one simulation.
- Where
- The Moon formed in orbit around Earth in the study’s simulation.
- Why
- Researchers included the strength and temperature of rock and metal in Earth and Theia to test how those factors affected Moon formation.
Scientific interpretation
Biblical interpretation
Meaning of the five-hour result
Scientific interpretation
The study presents a simulation in which the Moon formed rapidly after the Earth-Theia impact, using assumptions about material strength and temperature.
Biblical interpretation
Some social media users interpreted the rapid formation as support for the biblical creation account.
What the finding demonstrates
Scientific interpretation
The research addresses a scientific explanation for lunar formation and does not, in the reported findings, establish a religious conclusion.
Biblical interpretation
Commenters said the result matches Genesis passages describing God creating lights in the heavens on the fourth day.
- Study publication
- The Astrophysical Journal Letters
- Researchers
- Southwest Research Institute and University of Arizona scientists
- Collision scenario
- A Mars-sized body called Theia collided with Earth
- Approximate collision time
- 4.5 billion years ago
- Formation estimate
- About five hours in one simulation
- Key modeling factors
- The strength and temperature of rock and metal
- Religious interpretation
- Some social media users said the findings resemble Genesis’s account of two lights in the heavens