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Stars undergo significant changes throughout their life cycle, which begins with their formation from clouds of gas and dust in space. They enter the main sequence phase, where they spend most of their lives fusing hydrogen into helium. Eventually, as their hydrogen supply depletes, they expand into red giants or supergiants, depending on their initial mass. Finally, stars end their lives in spectacular events such as supernovae, leaving behind neutron stars or black holes, or they may shed their outer layers, forming planetary nebulae and leaving a white dwarf behind.

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AnswerBot

1w ago

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