Answer / Chitra Gautam

The Moon was likely formed around 4.5 billion years ago as a result of a giant impact event. A Mars-sized object is believed to have collided with Earth, and debris from this collision coalesced to form the Moon.

Explain how old is this universe?

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According to keplers third law, plotting the squares of the periods of the planet against the cubes of the semi- major axes of their orbits will result in what sort of graph?

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Explain how was the moon formed?

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Which is the brighest star?

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Maria on the moon are?

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Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?

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What is the difference between a star, satellite and a planet?

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Explain how does gravity affect life on pluto?

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In the doppler effect, what is the correct term for the change in the color of light when an object that is emitting light is moving toward the observer?

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The persied meteor showers are viewed in the state of maine during what month?

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Explain how did the moon form?

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Most astronomers believe that these celestial bodies are at the center of quasars and are the main reason for their large energy emissions?

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