This is the epic story of the stars, and how discovering their tale has transformed our own understanding of the universe. Once we thought the sun and stars were .\r
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How blackholes are formed. \r
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How stars develop from birth. \r
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More about this programme: Scientists think that when the most massive stars die in a supernova explosion .\r
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More about this programme: Stars are lit up by the most powerful form of energy generation known -- nuclear fusion .