'Earth copies' can exist in the universe
Proxima b, the closest stone planet outside the solar system, is one of many places where life can exist due to many suitable conditions.
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NASA's 'Ninth Planet' Shows Signs of Being Friendly to Life
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Why did American astronauts have to be quarantined when returning to Earth?
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China surprises the world by building a cable-stayed bridge 'above the clouds'
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Why do women sleep less and wake up more than men?
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Revealing the secret inside the stuffed animal claw machine, from there, summarizing experience to help you increase your winning rate many times over
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What would happen if you dug a hole through the Earth and jumped in?
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Camera takes a photo that lasts 1,000 years
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Was there nuclear war in ancient times?