Massive stars are formed out of the Nebula, ounce it has gained enough mass it begins to collapse on itself. This ignites the fusion of hydrogen within its core. The dust cloud surrounding it if large enough will create a massive star. A star is considered massive if it is at least eight times grater than our Sun. A massive star burns at extremely high temperatures at a cost of life length only lasting millions of years compared to smaller stars that last for billions of years.
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