Sun's Lifespan:
* Current Age: Approximately 4.6 billion years old.
* Main Sequence Lifespan: About 10 billion years. The Sun is currently in its main sequence phase, where it fuses hydrogen into helium in its core.
* Red Giant Phase: After the main sequence, the Sun will swell into a red giant, engulfing Mercury, Venus, and potentially Earth. This phase will last about 1 billion years.
* White Dwarf Phase: The Sun will eventually shed its outer layers, leaving behind a white dwarf, a dense, hot, and slowly cooling remnant. This phase will last trillions of years.
Solar System's Lifespan:
* Formation: The solar system formed about 4.6 billion years ago from a collapsing cloud of gas and dust.
* Future: The solar system's ultimate fate is tied to the Sun's evolution. After the Sun becomes a white dwarf, the remaining planets will likely be scattered by gravitational interactions or ejected from the solar system.
Key Points:
* The Sun's lifespan is much longer than the current age of the solar system.
* The Sun's evolution will have a dramatic impact on the future of the solar system.
* While the Sun will eventually die, white dwarfs can exist for trillions of years, leaving a long-lasting legacy in the universe.
Let me know if you'd like to know more about any of these stages!
