dust cloud

基本解释

But one thing about the object piqued the curiosity of a team of astronomers: HE0450-2958 was shrouded within a dust cloud that appeared to be too small to hide a surrounding galaxy.
但是HE0450-2958的一个特点引起了一组天文学家的兴趣：它被包裹在尘埃云团之内，可是尘埃云团太小，遮挡不住外围的一个星系。
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Traveling, you realize that differences are lost: each city takes to resembling all cities, places exchange their form, order, distances, a shapeless dust cloud invades the continents.
旅行时你会发现各地并没有差别：每个城市都与其他城市相似,城市互换形式、秩序以及距离,飘渺的尘雾漫绕大地。
Sculpted by stellar winds and radiation, a magnificent interstellar dust cloud by chance has assumed this recognizable shape.
由恒星风和恒星辐射雕塑的壮丽的星际尘埃云，碰巧呈现这易辨认的形状。

Donald Lamb of the University of Chicago and his colleagues think it might be just a dust cloud reflecting the glow of the burst, which is therefore nearby.
ECONOMIST: A symphony in gamma major
The result will be a second, smaller crater, a cloud of dust and, with luck, a plume of steam.
ECONOMIST: Creative destruction
Plowing the same patch on Thursday that he had plowed on Monday, sending up a cloud of dust that hovered in the air.
NEWYORKER: The Tree Line, Kansas, 1934