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What is he, alien?
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How do scientists look for extraterrestrial life?
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Are there planets similar to the Earth?
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What is DNA?
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Follow me, take it on your mind!
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Where did life come from?
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Is life on other planets?
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Why is the universe so constructed, and not otherwise?
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Where did the living matter come from?
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What does matter form?
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How did life begin?
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How did the first galaxies and stars form?
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What age is the universe?
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Why the size of the universe is increasing?
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What is a Big Bang?
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What is an extension?
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How much will the universe live?
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How did scientists learn about the formation of the universe?
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How did the universe originate?
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Can I see the Big Bang?
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What was in the place of the universe before?
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How many galaxies in the universe?
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What is the largest object in the universe?
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What are dual stars?
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What is a nebula?
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