Supernovaremnants: What is left after a heavy star violently explodes.
超新星遗迹：超重星体爆炸后所剩下的残迹。
2
Also called 30 Doradus, the red and pink gas indicates a massive emission nebula, although supernovaremnants and dark nebula also exist there.
也被称为剑鱼座30，红色和粉色气体标示一个大质量发射星云，尽管这儿也存在着超新星遗迹和暗星云。
3
Supernovaremnants play an important role in stellar evolution by enriching space with heavy elements, and triggering new star formation by compressing interstellar gas.