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How long do massive stars last?

Answer 1

Depending on the mass. If a star has 20 times the mass of the sun, its lifetime will be a few hundred million years. Between 8-19 solar masses, it lifespan could be a few hundred million to a few billion.

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Answer 2

Levi Anderson

Because they burn their nuclear fuel much more quickly than smaller stars, massive stars usually have shorter lifetimes—between a few million and a few tens of millions of years—before exploding into a supernova that leaves behind remnants like neutron stars or black holes.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.