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My Answered Questions
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why do stars burn gas?
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do you know how many solar systems there are?
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How many planets do you think are not yet discovered?
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where does space begin?
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can 2 stars collide to create an explosion?
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what happens to stars once they turn to black dwarves?
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can we ever get sucked into a black hole?
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what happens when the sun explodes
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is there any evidence to other lifw forms on other planets
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what happens if the earth gets hit by an astroid?