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。
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