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。
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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