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Luna, Our Moon

Luna, Our Moon. Galileo was first to discover large mountains among craters called lunar highlands Dark regions, known as maria, are a result of lava cooling in low areas. Moon’s Rotation and Revolution. rotation and revolution occur once every 27.3 days

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Luna, Our Moon

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  1. Luna, Our Moon • Galileo was first to discover large mountains among craters called lunar highlands • Dark regions, known as maria, are a result of lava cooling in low areas

  2. Moon’s Rotation and Revolution • rotation and revolution occur once every 27.3 days • due to rotation and revolution being the same speed, one side of the moon is always visible and the other side is never seen • moonlight is actually reflected sunlight

  3. Tides • Moon’s gravity pulls on Earth, with places on Earth closer to the moon results in harder pulling • Bulges occur on the sides of Earth closet to and farthest from moon (high tides) • As the Earth rotates, different areas experience high and low tides

  4. Sun’s Effect on Tides • Sun has about ½ tide generating force as Moon • When Sun, Moon, and Earth are aligned, high tides are higher and low tides are lower (spring tide) • When Sun, Moon, and Earth are at 90 degrees, high tide lower and low tide higher (neap tide)

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