Components of the Universe STAAR Review

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What is the Milky Way galaxy?

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The Milky Way galaxy is a spiral galaxy that contains our solar system, along with billions of other stars and their planets.

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What is a star?

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A star is a massive, luminous sphere of plasma held together by gravity, undergoing nuclear fusion in its core.

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What is a supernova?

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A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, particularly for high-mass stars.

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What is a black hole?

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A black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

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What is a red giant?

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A red giant is a late stage in the life cycle of a star, where it expands and cools after exhausting its hydrogen fuel.

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What is a high mass star?

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A high mass star is a star that is significantly more massive than the Sun, leading to different evolutionary paths and outcomes.

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What is the difference between a planet and a star?

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A planet is a celestial body that orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.

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What is the solar system?

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The solar system is a collection of celestial bodies, including the Sun, planets, moons, asteroids, and comets, bound by gravity.

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What is the role of gravity in the universe?

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Gravity is the force that attracts objects with mass towards each other, playing a crucial role in the formation and structure of the universe.

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What is a galaxy?

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A galaxy is a vast system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.