Theories of the Origin of the Moon
After years of research, studying gamma rays and rock samples from the Earth and the Moon, it is generally accepted that the ages of the Earth and the Moon are the same. There are several theories on its formation.
The prevailing theory at present is some form of early impact, possibly by a co-orbiting object that fused with the Earth after the collision, but that blasted loose the material which later formed the Moon.
Most widely accepted scientific explanation
It is believed that the moon formed around 4.5 billion years ago and only a few hundred million years after the Earth.
Today, based on the evidence, the most widely accepted scientific explanation for the formation of the Moon is called the Giant Impact Hypothesis. According to this model, the Moon formed from debris that was the result of a huge collision. Not long after Earth formed, a proto-planet about the size of Mars (often called Theia) smashed into it at a low angle and relatively low speed. The cataclysmic impact rendered the entire Earth molten, and caused significant amounts of its mantle and crust to be blown into space. The metallic core of the impactor sunk through the Earth's mantle to fuse with Earth's core, thereby depleting the Moon of metallic material and explaining its unusual composition. The force of the collision is also believed to have been responsible for tilting the Earth at angle of 23.5 degrees, allowing for seasons.
The debris from the collision began orbiting the Earth and gathered together through gravity to form a sphere: the Moon. The Moon formed surprisingly quickly, possibly in less than a month but no more than a century. It started out closer to the Earth than it is today, and must have caused massive tides. Slowly, due to conservation fo angular momentum, it moved further and further out until it got to the familiar orbit it is now. Even today, the Moon is receding from Earth by an inch and a half every year, but it will take billions of years for the Moon to escape from Earth's gravity altogether.
There are still some problems with the Giant Impact hypothesis that need to be overcome. For example, the ratios of the Moon's volatile elements (such as water) are not explained by this model. Also, the moon's oxygen isotopic ratios are essentially identical to Earth's when they should be different. Regardless, the Giant Impact model is currently the best explanation scientists have based on the evidence that has been gathered, and holds more weight than the other theories for the Moon's formation.
A hypothetical protoplanet (Theia) hit the Earth really hard during the Cryptic Era of the Hadean Eon (the Earth was still mostly molten, and completely void of life.) The debris was flung out so far, some of it went out into space and coalesced into the Moon.
The moon was created by god ruler of heaven and earth
A collision - which also started the Earth's rotation.
As of 2017, the way that seems most likely, for the formation of the Moon, is a giant impact - i.e., an object the size of a small planet collided with Earth.
theroes show during the big bang how the universe was created it floated to earths gravity. also people say earth spun so fast a big chunk of rock fell out of it
Vanguard1
The Physicist, Galileo Galilei.
Hi.If the moon was absent we would be literally screwed. Since the moon controls the Earths tides, no moon equals the whole world flooded one big ball of water.
The moon is the earths only natural satellite
The Moon is 1/4 of Earth's diameter, 1/50 of Earth's volume, and 1/80 of Earth's mass.
Why do scientists believe there might be water on the Moon?
they already found gallons on the moon
I believe there are because were not the only planet
None that have any credibility.
No respected or respectable scientist would think that. So no.
i believe mantle rocks from earth to core .
The moon was created when another planet slammed into Earth - the Earths gravity captured the particles and the formed to become our moon.
Believe it or not, none. The Earths tides are solely affected by our Moon.
the earths moon helps sustsian the gravity on the earths oceancs keeping them in balance
I think Mars is bigger than Earths moon.
0.578987334321 Earths fit into the moon because the moon is smaller than the Earth
the moon