how old is the earth
what is 4.5 billion years
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what is Sagittarius A*
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how much energy does a humman amont of anit-matter tuth matter how big is the exploshon
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does a white hole spin
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how fast is the speed of light
what is 299 792 458 meters / s
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whats the smallest possumule black hole ever
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how small can a white hole be
what is 1/100,000 of a hudregun atom