What would happen if the Earth revolved around the moon and the sun revolved around Earth?
Would life still be possible on Earth?
(I know this is impossible due to the gravitational pull, but hypothetically speaking)
I know it is impossible, as I stated before. I said hypothetically speaking. thank you sunshine.
It would be impossible because the gravity of earth is more than that of the moon and 100000000 earths could fit in the sun so you should get it by now
It’s impossible for a much larger body to orbit a smaller one. The earth could not "orbit" the moon, nor would the sun orbit the earth, so it doesn’t make sense. And no, life would probably not be possible with that configuration.
Then things would not be as they appeared.
Strictly speaking the earth and moon revolve about their common centre of gravity, and the earth and moon are being tossed about between the sun and the other planets.
But since the sun is so much bigger than the planets, and the earth is bigger than the moon it is easiest to say that the moon goes round the earth etc. as an approximation.
So to make the sun go round the earth, you would either have to make the sun much lighter – but if the sun is made lighter, it is also made colder. And if it was made smaller than the earth it probably wouldn’t have enough gravity to hold itself together – so there would be no heat for the earth and no life
If the earth was made hevier than the sun the force of gravity on the surface would be a real drag. The atmosphere would be so dense that we could not evolve past slime, and the intense pressure would.
On the other hand if the moon was made larger than the earth, it would mean that we would be living on the "moon", and there would be no great problems. It is possible that life does exist on some of the moons of Jupiter.
Technically, the Earth and the Moon orbit each other around their center of mass (barycenter) which happens to be inside the radius of the Earth. It would be impossible for a small body such as the Moon to have the barycenter within it’s radius.
The real question is "why does one body need to orbit another?"
Gravity is not a one way street.
The Earth pulls on the moon and the moon pulls on Earth. The truth is that they orbit a point called the barycenter (the center of mass) of the system of bodies.
For Earth-moon, that barycenter is about 0.7 Earth radii from Earth’s center. This is why you think Moon orbits Earth.
For Pluto-Charon, the barycenter is external to both bodies, and neither really orbits the other, but rather just a point in space…and they form an official binary system.
If the moon were much larger than the Earth…let me repharse…if Luna were much larger than Earth…
Luna would be our barren host planet, and Earth would be the moon. Maybe that is possible…some habitable moons are hypothesized.
It would mean that Luna would appear huge in our sky, and perhaps our land would be shaped tremendously by tidal effects.
In Avatar, the sky of Pandora is what it would be like to live on a moon. They have a huge blue Jupiter in the sky, named Polyphemus.
That could only happen in a Unverse with negative gravity
Dumb question, why would you ask a question like this, you should know that what you stated could not take place for the simple reason there are eight planets in our solar system, and if the sun orbited the earth, it would either be out beyond the other planets, if not it would collide with them.
and if the earth orbited the moon, this would put the earth closer then further away from the sun as it orbited the moon, and this two hundred thousand mile would change the temperatures on earth to where no one could survive.
They’d have to rewrite a lot of books but it’ll be business as usual until December 21st 2012 when the world ends.