SR Nebular Theory

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What is the SR Nebular Theory?

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The SR Nebular Theory explains the formation of the solar system from a rotating cloud of gas and dust, known as a nebula, which collapsed under its own gravity.

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What are planetesimals?

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Planetesimals are small celestial bodies that form from the dust and gas in a nebula and eventually collide and stick together to form planets.

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What happens to planetesimals during the formation of the solar system?

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They keep colliding and sticking together, leading to the formation of larger bodies.

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What is the main theory that explains the formation of the solar system?

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The main theory is called the Nebular Theory.

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Where in the solar system would you expect to find gas giants?

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Gas giants are expected to be found very far from the sun.

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How do stars form according to the SR Nebular Theory?

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Stars form when a nebula collapses under gravity, leading to increased pressure and temperature, which initiates nuclear fusion.

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What stage of the stellar life cycle is our sun currently in?

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Our sun is currently in the main sequence stage.

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What is a nebula?

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A nebula is a large cloud of gas and dust in space, often the birthplace of stars.

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What role does gravity play in the formation of the solar system?

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Gravity causes the nebula to collapse, leading to the formation of stars and planets.

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What is nuclear fusion?

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Nuclear fusion is the process by which two light atomic nuclei combine to form a heavier nucleus, releasing energy, and is how stars generate energy.