超新星遗迹：超重星体爆炸后所剩下的残迹。

Supernova remnants: What is left after a heavy star violently explodes.

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当星系碰撞，点燃了星体构造的活动时，天文学家也用团块星云来研究遥远的星体爆炸发生的情形。

Astronomers also use massive clusters to study distant starbursts that occur when galaxies collide, igniting a flurry of star formation.

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因此，我们都是星团，并且这对我们而言似乎是合理的，了解星体爆炸时化学元素是如何形成的。

So, we re are all stardust, and it is seems reasonable for us to want to know how these elements get formed when stars exploded.

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