Assertion: nebula's star | /r/CapableOf | reach its final evolutionary state
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text: After all, diffuse nebulae are not just clouds of gas and dust in space in which stars are born, but another type called planetary nebula are those places created when a star reaches its final evolutionary state, and changes from a red giant to a white dwarf, in the process shedding its outer layers of gas to form a planetary nebula.