➝Today, when Earth was born 460 million years ago, a huge planet was coming towards the Earth.
➝The size of this planet was almost equal to that of Mars and the scientists named it Theia.
➝Due to the collision of that planet, some debris of the Earth went into space.
➝This is why the excreta got entangled together due to the force of gravity and our moon was born.
➝At that time, the moon was very close to the Earth, and then one day on Earth was about 6 hours.
➝Since then, the moon has been moving away from our earth.
➝Today, the moon is moving 3.78 centimeters away from the earth every year.
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