How does the lifespan of an ultra-hot, massive star like R136a1 compare to the Sun's expected lifespan?

Answer

They may only survive for a few million years.

The hottest stars burn through their nuclear fuel at an alarming rate due to immense mass; a star like R136a1 may only survive for a few million years, unlike the Sun's expected 10 billion years.

How does the lifespan of an ultra-hot, massive star like R136a1 compare to the Sun's expected lifespan?
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