6 billion years, is the ultimate source of energy for every ecosystem and the anchor of our solar system. The Final Act: A Stellar Corpse Once the red giant phase concludes, the sun will no longer have the mass necessary to sustain fusion in its core.
The Sun's Final Act: Becoming a Stellar Corpse
Helium Accumulation and Core Contraction As the hydrogen in the core depletes, the fusion rate slows down because there is less fuel available. This contraction causes the core to heat up significantly, while the outer layers of the sun start to expand.
This process generates the outward pressure that perfectly balances the inward pull of gravity, creating the equilibrium that has allowed life to flourish for billions of years. At this point, the sun will become a red giant, growing to a size that could reach the orbit of Mars.
The Sun's Final Act: Understanding the Stellar Corpse Phase
This exploration delves into the science behind stellar evolution, pinpointing the precise timeline for the sun’s transformation and ultimate demise. The increased energy production will cause the outer layers to expand massively, swallowing the inner planets.
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