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Why Does the Moon Always Show the Same Face to Earth?
đź’ˇ The Answer
- Tidal locking causes the Moon's rotation period to equal its orbital period.
- Gravitational forces from Earth gradually slowed the Moon's spin over billions of years.
- The process is common among moons in close orbits around their planets.
- The far side was completely unknown until the 1959 Luna 3 mission.
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