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The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a number of variations on this giant-impact hypothesis, as well as alternative explanations, and research continues into how the Moon came to be formed.
How did the Moon form? Earth’s Moon was born out of destruction. Several theories about our Moon’s formation vie for dominance, but almost all share that point in common: near the time of the solar system’s formation, about 4.5 billion years ago, something ― perhaps a single object the size of Mars, perhaps a series […]
For Laplace, the most obvious explanation for the Moon was that it must have formed alongside Earth (a process known as binary accretion) and been a constant companion since the earliest days of our planet’s history. But even Laplace could see that the Moon’s huge size presented a problem.
Question: Where did the Moon come from? Answer: Any theory which explains the existence of the Moon must naturally explain the following facts: The Moon's low density (3.3 g/cc) shows that it does not have a substantial iron core like the Earth does.
Museum planetary science researcher Prof Sara Russell explains the origins of Earth's closest companion. Analysis of samples brought back from the NASA Apollo missions suggest that the Earth and Moon are a result of a giant impact between an early proto-planet and an astronomical body called Theia.
Dec 13, 2022 · Where did our Moon come from? Well, actually, there have been several theories over many decades. Earlier versions of lunar formation theories included capture, where the Moon would have been a strayed planetoid.
Mar 27, 2012 · Learn about different models of how the moon was created, from the giant impact hypothesis to the capture theory. Find out how new research challenges the prevailing view and what the moon's composition reveals about its origin.
