It's a Fact About 1,300,000 planets the size of earth could be packed into the sun. Millions of miles (kilometers) out in space there is a gigantic ball of hot, glowing gas we call the sun. The...
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Space is---emptiness. It is black because emptiness has no light of its own. It is neither cold nor hot because emptiness has no temperature. And, of course, there is no air or water in space. But...
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