The basic explanation of the theory is that the moon (or material) that is blasted into the universe after a planet-sized body slammed into the Earth. This would have happened about 4.4 billion years ago. The planet’s size would have been about the size of Mars, which is 4,220 miles in diameter. Though in another study in 2012, it states that impactor and the target --new, still growing Earth-- are about 50 percent as massive as the Earth is today. The Moon didn’t go farther in space because of the gravitational pull that the Earth had against the Moon. It gives us an idea of what the composition and the orbit of the planet would be, but the theory is still gaining more information as the scientists are researching it,
The basic explanation of the theory is that the moon (or material) that is blasted into the universe after a planet-sized body slammed into the Earth. This would have happened about 4.4 billion years ago. The planet’s size would have been about the size of Mars, which is 4,220 miles in diameter. Though in another study in 2012, it states that impactor and the target --new, still growing Earth-- are about 50 percent as massive as the Earth is today. The Moon didn’t go farther in space because of the gravitational pull that the Earth had against the Moon. It gives us an idea of what the composition and the orbit of the planet would be, but the theory is still gaining more information as the scientists are researching it,