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Reverend Secret Flower
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The planet is tidally locked but can regulate temperature, but gravity is twice as strong there as earth. It's the size of the planet that makes it tidally locked, right?
No. Size has nothing to do with it. Hell, the moon is much smaller than earth and its tidally locked to us.
 

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The planet is tidally locked but can regulate temperature, but gravity is twice as strong there as earth. It's the size of the planet that makes it tidally locked, right?
No. Like 7soh said, the moon is tidally locked to the Earth (hence why we only see one side of it 100% of the time). Most of the major moons in our solar system are tidally locked to their respective planets, but most likely, none of the planets in our solar system are tidally locked (Mercury is kind of tidally locked to the sun... kind of).

Generally the cause for tidal locking seems to be the planet's close proximity to its star.

The gravity being twice as strong on that planet as on Earth would be a pretty serious problem if anyone wanted to live there. It wouldn't be anywhere near as dramatic as if someone had been born and raised on the moon and then tried to move to Earth (in that case, they would die almost immediately from the Earth's extremely strong gravity (in comparison to the moon)).
 

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No. Like 7soh said, the moon is tidally locked to the Earth (hence why we only see one side of it 100% of the time). Most of the major moons in our solar system are tidally locked to their respective planets, but most likely, none of the planets in our solar system are tidally locked (Mercury is kind of tidally locked to the sun... kind of).

Generally the cause for tidal locking seems to be the planet's close proximity to its star.

The gravity being twice as strong on that planet as on Earth would be a pretty serious problem if anyone wanted to live there. It wouldn't be anywhere near as dramatic as if someone had been born and raised on the moon and then tried to move to Earth (in that case, they would die almost immediately from the Earth's extremely strong gravity (in comparison to the moon)).
I thought that size and proximity to a gravitational force was the source for being tidally locked. I guess you would weight twice as much, your joints would wear out faster, and grandmas could actually tuck their breasts into their socks. Saggy balls that weigh twice as much? I'm out.
 

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Tarantula Lobbyist
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I don't think you can discount an object's interior construction when discussing how and why it became locked or not. An object with a liquid center, like Earth, is more difficult to lock than an object like the solid cored Moon (as the solid object would also almost certainly have a 'heavier' side, as the Moon's 'heavier' side is facing us) because that liquid is capable of motion and therefore density and weight redistribution as it revolves. It's just more difficult to lock an object with redistributable mass and density.

Not the be all and end all cause mind you, just another point to consider when thinking about the forces involved.
 
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