It fell to earth I knew not where;

它消逝在我不知何处的角落；

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It was expected that most of the meteorites that fell to Earth were left over from the birth of the solar system, so they should have formed at the same time as the Earth.

有人预计，坠落到地球的陨石，都是从太阳系的诞生起遗留下来的，因此他们应该与地球同时形成。

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'Whether anything fell to Earth or not, we won't know for sure until we've seen an image of it.'

是否有东西落到地球，我们只有看到其影像才能确定。

youdao

Using the footage and the location of an impact into Lake Chebarkul, Jorge Zuluaga and Ignacio Ferrin, from the University of Antioquia in Medellin were able to use simple trigonometry to calculate the height, speed and position of the rock as it fell to Earth.

BBC: Russia meteor's origin tracked down

The satellite it carried fell back to earth, landing not far from the packing crate in which it arrived.

NPR: SpaceX Makes Progress with Rocket Test

Today, as ever, it has been about justice, for those 270 innocent American and Scottish citizens who fell to earth like so many doused stars on a cold night in late December.

CNN: Justice for Libya, and Pan Am victims