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Stars - Greg Brown Product Type_Natural video conferencing and internet gamingThere are approximately ten billion trillion stars in the entire observable Universe. That's a little more than the number of grains of sand on all the beaches on Earth. But what exactly are stars? How long do they live? How hot are they? The answers to these questions and many more are answered in the first book in a series of accessible guides to astronomy, written by astronomers at the Royal Observatory Greenwich.
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