Astronomers group asteroids into different classes based on how the rocks reflect light in space.
天文学家通过在太空中反射光的方式将小行星分门别类。
They are just faint pinpricks of light in space, but they will give astronomers clues to what those distant planets are made of and how they formed.
它们在太空中只是一个个闪烁的亮点。但科学家会循此得出这些遥远的星体组成的成分和形式。
Some very important discoveries have been made by this technology, especially you consider that some objects in space give off radio waves but don't emit any light.
运用这项技术后,已取得了一些非常重要的发现,尤其是考虑到太空中的一些物体会发出无线电波,但不会发出任何光。
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