was the moon created from excess matter from the earth?

Answer 1

From wikipedia.org:

Today, the giant impact hypothesis for forming the Earth–Moon system is widely accepted by the scientific community. In this hypothesis, the impact of a Mars-sized body on the proto-Earth is postulated to have put enough material into circumterrestrial orbit to form the Moon.[1] Given that planetary bodies are believed to have formed by the hierarchical accretion of smaller bodies to larger ones, giant impact events such as this are thought to have affected most planets. Computer simulations modelling this impact are consistent with measurements of the angular momentum of the Earth–Moon system, as well as the small size of the lunar core.[33] Unresolved questions regarding this theory have to do with determining the relative sizes of the proto-Earth and impactor, and with determining how the material from the proto-Earth and the impactor was distributed when it formed the Moon. The formation of the Moon is believed to have occurred 4.527 ± 0.01 billion years ago, about 30–50 million years after the origin of the solar system."

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Answer 2

The theory with the most evidence points to a collision between another planet, roughly the size of Mars, and Earth. This collision would have happened about 3 billion years ago. The smaller planet, called Thea, impacted Earth, and matter was ejected into space. This matter was then captured by Earth's gravity, where it underwent accretion to form first small planetoids, then eventually the Moon itself. The composition of the Moon would consist of parts of the Earth, and parts of Thea.

Initially, the orbit of the Moon around the Earth was much faster than it is today, and it was also much closer. Through simulations using computers, researchers were able to determine that if this theory is true, the Moon will be slowly moving away from the Earth, and it has been ever since it's creation. They have been able to verify this by placing laser reflectors on the moons surface, and bouncing a laser back to Earth, to determine that the Moon is moving away from the Earth in its orbit at the rate of about 1 inch per year.

Answer 3

The most popular theory says that a Mars-sized body hit the Earth billions of years ago. A large mass of material was ejected from the Earth and entered into Earth orbit. The material condensed and formed the Moon. One of the biggest pieces of evidence in favor of this hypothesis is the similar composition of Earth rocks and Moon rocks returned from the Apollo missions.

Answer 4

Nobody is sure how the moon is created, but the theory that it was created from "excess" matter from the Earth is one that is widely accepted. However, there are many other theories that are just as popular, including ones about collision, captured objects, etc.

There is simply no way to verify it with the technology we have today.

Answer 5

Nobody is sure. Some believe the moon is a chink of Earth, but it contains no signs of former life. Some believe it was a metoer caught by Earth. Some think it has been with Earth since the beginning of our solar system's time, 4 billion years ago. It is a mystery.

Answer 6

The moon was most likely created from a collision between the earth and large celestial body in the primordial days of our solar system. It collided with earth and what was left began to orbit.

Answer 7

I always heard something collided into the earth and a piece of earth came off and flew into space, and that's what the moon is made of.

Answer 8

there are theories that suggest that. it can also be possible that a passing matter was captured by the earths gravitational field and started revolving around the planet.

Answer 9

I believe that's the case, but you can double check that and see a lot of cool things on SPACE.com, and get their free newsletter.

Answer 10

Some scientists think it was.