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The spinning Earth
The spinning Earth
Physics • Our solar system and beyond
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Earth is a planet. It is a sphere that spins once every 24 hours.
Earth's spin explains day and night.
Earth orbits the Sun, with each orbit taking 365.25 days (1 year).
Earth orbits the Sun in an almost perfect circle.
The Moon orbits the Earth about once per month (27.3 days), this explains why the Moon appears to change shape.