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Why do we see only one side of the moon?

The moon is a satellite of the earth which revolves and rotates around the earth at the same time. It makes one revolution of the earth in approximately 29 days. It’s quite amazing to hear about this coincidence but there are facts and logic behind this phenomenon. We see only one side of the moon because of this similarity in the timings of the rotation and revolution around the earth. It is not that the moon is rotating and revolving around the earth at the same speed from the day it appeared on the horizon, but it rotated way faster than what it does today.

Both the earth and the moon exert gravitational pulls on each other and because of this, over the years the earth’s stronger gravitational force slowed down the moon’s rotation. Due to this gravitational pull, the moon’s rotation and revolution got synchronized with that of the earth and that is why we always see the same side of the moon.

The gravitational pulls of both the earth and the moon maintains the present distance between them and the rotation of the earth causes the moon to revolve around the earth. A simple experiment can clear the things better: take two magnets and start moving one with the help of the other without physically letting it touch the other magnet. The same logic explains the current positions of the moon and the earth. That is why only 50% of the moon is visible from any part of the earth.

Source:- www.thegeminigeek.com/why-do-we-see-only-one-side-of-the-moon/

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