Double planet:-
Earth and Moon have shared a common history for 4500 million years. Knowing the Moon more thoroughly will help scientists to understand our home in space. Then we may be better able to safeguard it.
The Earth and the Moon are relatively close in size , unlike most planet-moon systems. in fact compared with the Earth, the Moon is far larger than any other moon in the solar system have less that 1/1000 of the mass of the parent planet.
The Moon does not just revolve around the Earth. It revolved around the Sun in concert with the Earth. So, people consider the Earth and Moon to be double planet system rather than a planet-moon system. Or we can say that the Moon is therefore satellite, but as Earth's sister or planet.
Wow thanks
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