Hydrogen and helium from the Big Bang fuse to form heavier elements, and if the star is big enough, at the end of its life, it does something spectacular.

• 来自大爆炸的氢和氦融合形成更重的元素，而且如果一个恒星足够大，那么在它的生命终结时，就会发生非常壮观的事件。