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Why do we always see the same side of the moon?

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2016-04-23 06:26:12
2016-04-23 06:26:12

It is tidal locking that causes the synchronous rotation which causes the Moon to present "just one side" to the Earth all the time. The Moon rotates (spins) but very slowly, making one turn on its axis in the same time it takes to revolve (orbit) around the Earth. So it maintains a "constant face" in our direction. We actually see slightly more than half of its surface as it turns.

It is believed that the Moon originally had a faster rotation (spin), but the effect of the Earth's gravity was to reduce the spin.

(The dwarf planet Pluto and its moon Charon are believed to be "dually locked", so that each shows the "same side" to the other as Charon orbits.)

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Related Questions


We see the same of the moon from earth because that is the side that always faces the sun. So that's how we see the moon phases and the side we always see. You always see the same side of the moon from earth because the moon orbits on its axis at the same speed that it rotates around the earth, so the same side of the moon is always facing the earth.


the same side of the moon we always see, you can never see the other side of the moon


The answer is yes. We always see the same side of the moon from the Earth because the time it takes the moon to circle the Sun is the same as the time it takes to circle itself.


The moon rotates and revolves at the same rate


As long as you're on Earth, you will always see the same side of the moon. This is because the moon is tidally locked with the earth, meaning is rotational period is the same as its revolutionary period. This allows us to always see the same side of the moon, no matter where on earth we are.


Yes because on the east the moon rotates on its axis and when it gets back to our side we get the same side as always


Yes. Because of its locked orbit, the same side of the moon always faces the Earth.


You always see the same side - as the moon takes the same time to orbit the earth as it does to rotate once on its axis !


Yes ya you just see different portions and shadows of the moon. That's why there is the expression 'dark side of the moon' because it is always the same side that they are talking about (the side that always faces the sun)


the reason you only see one side of the moon is because the rotation of the moon and the revolution speed of the moon are the same


29 1/2 Earth days - same as the Moon cycle (from full moon to full moon) we see on Earth. (The Moon always shows us the same side.)29 1/2 Earth days - same as the Moon cycle (from full moon to full moon) we see on Earth. (The Moon always shows us the same side.)29 1/2 Earth days - same as the Moon cycle (from full moon to full moon) we see on Earth. (The Moon always shows us the same side.)29 1/2 Earth days - same as the Moon cycle (from full moon to full moon) we see on Earth. (The Moon always shows us the same side.)


We always see the same side of the Moon. During a new moon, this side is dark - the Sun shines on the part that is away from us.


It is because the moon takes the same time to rotate as it does to orbit the earth, meaning we always see the same side of it. In truth we can see a little over half of the moon throughout its rotation, but never the far side of the moon.


The moon spins at the same speed that it orbits the earth so we always see the same side. Some believe it is because the earths gravity is always pulling on the heaviest part of the moon, the side we see, but that's just a theory.



The moon spins at the same speed that it orbits the earth so we always see the same side.


No; the reason we always see the same side of the moon is because it rotates at the same rate that it revolves around the earth.


Because the moon spins at the exact same rate that it rotates around the earth


The moon does not rotate so on Earth we always see the same side no matter where the observer is.


The dark side of the moon is always hidden from our view since the moon rotates around itself at the same rate it rotates around the Earth. Therefore the same side always faces us.


No. The moon rotates around its self and around earth.


Because the moon turns as it goes around the Earth.


We on earth always see the same face of the moon, but the "dark side" of the moon is not always dark. For example, in a lunar eclipse, the back side of the moon is receiving all of the sunlight, while the side facing us receives none.


The Moon always faces the same side because its gravity with Earth makes it pull around us. When you see half of the Moon its because of the way Earth is rotating or how the Moon is positioned.


Yes. The moon is tidally locked to the earth, so that whether the moon is new, waxing, full, or waning, we always see the same side.



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