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Fav十万个为什么
为什么有人说太阳也会熄灭？
太阳也会熄灭，这是因为其内部的氢燃料会逐渐耗尽，进入红巨星阶段后膨胀并吞噬内侧行星，最终冷却为白矮星。
1、氢燃料耗尽：太阳主要通过氢核聚变释放能量，随着时间推移，核心的氢元素逐渐耗尽，核聚变反应减弱，能量输出减少。
2、进入红巨星阶段：当氢燃料耗尽后，太阳会膨胀成为红巨星，其外层可能吞噬包括地球在内的内侧行星，释放大量能量。
3、冷却为白矮星：红巨星阶段结束后，太阳将逐渐冷却并收缩为白矮星，最终熄灭，停止发光发热。
总结：太阳也会熄灭，这是因为其内部的氢燃料会逐渐耗尽，进入红巨星阶段后膨胀并吞噬内侧行星，最终冷却为白矮星。
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