Labels:encyclical | fence | pier | pole | reckoner | sea | sky | skyscraper | water OCR: 80011 lightyea Because the stars in om cluster are believed the asingle cloud of gas at same time, all are roug sarme age and have the composit tion Differenc therm are probably sters their mass Thus globu have been instrurnenta deternining how mass stellar evolution Stars create energy sion nuclear fusion. The rat depends on star's with greater Imass willl fuel more quickly than n8ss lighter So stars with ither have shorter lifetimes consume the hydrogen single samme cornposition Differene them probabl beer determining evol ution will U8SS lifetirmes
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