Question

what does a massive star become when it dies​

Answer 1

Answer:

All stars eventually run out of their hydrogen gas fuel and die. As the hydrogen runs out, a star with a similar mass to our sun will expand and become a red giant. ... When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant.

Answer 2

All stars eventually run out of their hydrogen gas fuel and die. As the hydrogen runs out, a star with a similar mass to our sun will expand and become a red giant.

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