In the surrounding asteroid dust, there was a mineral similar to olivine, which is common here on Earth.
在环绕周围的小行星尘埃中，有与地球上常见的橄榄石很类似的一种矿物质。
Earlier studies have shown that the Earth does the same thing with dust released from the asteroid belt.
先前的相关研究表明，地球轨道周围也存在类似的尘埃空洞，其尘埃是来自小行星带的。
A solid body, moving in space, that is smaller than an asteroid and at least as large as a speck of dust.
流星体活动在空间的固体天体，比小行星小，至少与尘埃一样大。
What was once the asteroid is now just a jagged ring of dust, encircling the Earth like one of the rings of Saturn.
在曾经是小行星现在只是一个锯齿状的尘埃环，包围像土星环一个地球。
First results from the encounter, announced at the American Astronomical Society meeting in Pasadena, suggest the asteroid, small though it is, is covered with a layer of dust.
美国天文学会在帕萨迪纳市（美国加州）的会议上，发布了罗塞塔号行经司琴星时传回的第一批观测成果。 结果显示，司琴星尽管体积不大，其表面却覆盖有一层尘土。
First results from the encounter, announced at the American Astronomical Society meeting in Pasadena, suggest the asteroid, small though it is, is covered with a layer of dust.
美国天文学会在帕萨迪纳市（美国加州）的会议上，发布了罗塞塔号行经司琴星时传回的第一批观测成果。 结果显示，司琴星尽管体积不大，其表面却覆盖有一层尘土。
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