The Moon's Impact on Earth
In The Moon's Impact on Earth, learn how the Moon plays a crucial role in Earth’s tides, climate, and seasons. Meet Jerry Wiant who uses a laser to measure the Moon’s distance from Earth at the McDonald Observatory in West Texas, revealing that the Moon is receding at a rate of 3.8 cm/year. This information helps us understand the Moon's influence on Earth and the long-term effects of its gradual movement away from the planet. This video is excerpted from BBC’s Earth: The Power of the Planet, a documentary that explores the fascinating geology on planet Earth.
Lesson Express
Q: What impact does the Moon have on Earth’s tides and climate?
A: The Moon causes tides and helps stabilize Earth’s climate. Without the Moon, Earth would experience extreme temperature swings, making it difficult for life to survive.
Q: Why is it important that the Moon is receding from Earth?
A: The Moon’s gradual movement away from Earth provides insight into the Earth-Moon system and helps scientists understand the long-term effects on the planet’s stability and climate.
Q: How is the Moon’s distance from Earth measured?
A: The Moon’s distance is measured by firing a laser through a telescope at a reflector on the Moon and calculating the time it takes for the light to return.
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