Why do massive stars exhibit shorter lifespans compared to low-mass red dwarfs?
Answer
They burn through their hydrogen fuel reserves at an extremely rapid rate.
A star's behavior and lifespan are determined by its mass. More massive stars possess greater internal pressure, which necessitates a much faster rate of hydrogen fusion to maintain equilibrium. This process consumes fuel so inefficiently that even with larger reserves, these massive stars exhaust their fuel supply relatively quickly, much like a high-performance engine that drains its fuel tank at an accelerated speed.
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