This swirling mass or " nebula" began to cool and, as it did, it condensed and separated into rings of particles.

巨大旋涡质或" 星云" 开始冷却，而且，随着冷却开始聚集，并分开变粒子环。

Between M78 and Earth are long filaments of very cold and dark dust, blocking the light from the reflection nebula behind and looking like dark rivers running through it.

在 M78 和地球之间是由非常寒冷和黑暗的尘埃组的长，阻挡了来自后面反射星云的光线，看起来就像流经其中的黑暗河流。