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1
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A possible outcome for the universe in which the expansion will stop and turn into a contraction
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2
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Theory that the universe has the same mass that it has always had.
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3
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Model predicting that the universe is flat
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4
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Theory that the universe is ever expanding
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5
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The study of the universe and its current nature, origin, and evolution
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6
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A possible outcome for the universe in which the expansion will never stop
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7
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A possible outcome for the universe in which the expansion will slow to a halt in an infinite amount of the time but will never contract
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8
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Cosmic Background Explorer
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