Small meteorites have left impact craters all over the planet’s surface.

这个行星的表面布满了小块陨留下的撞击坑。

One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.

地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。

He discovered an unusual meteorite.

他发现了一块奇异的陨。

If you look over the element ratios we measured, you might conclude that our comet particles look more like chondritic porous IDPs than CI chondrite meteorites.

如果你查看我的元素比率，你将得出结论——我的彗星颗粒看上去更接近多孔球粒陨IDPs而不是CI球粒陨。