It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.
据推测，所有行星都是由尘埃和气体组成的原始云团凝聚而成，其组成与木星的组成有些相似。
2
In the well known Pleiades star cluster, starlight is slowly destroying this wandering cloud of gas and dust.
在著名的昴宿星团里，星光正缓慢地摧毁这些游荡的气体和尘埃的云团。
3
This violent phase of consumption is the one that is readily observed, because the castoff energy turns the incoming gas and dust into a glowing cloud.