That instrument, an even more expensive space telescope, will require some means of blocking the light from a star in order to detect light reflected by its planet.

作为一个价值千金的天文望远镜，这个仪器需要一些能够掩盖星光的方法，从而使其更好的探测行星的反射光。

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The "stauroscope", an optical instrument for studying the crystal structure of minerals under polarized light, is also no longer used.

一种用来研究偏振光下矿物的晶体结构的光学仪器，也不再被使用。

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Scientists from the Search for Extraterrestrial Intelligence Institute (Seti) used infrared light from an instrument on the Mars Reconnaissance Orbiter to study the Nili Fossae rocks.

地外文明搜索协会Seti的科学家们使用火星轨道勘测器上的红外观测仪器对尼利•福萨岩石群进行了研究。

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Nasa suggested it could be used in detectors and instrument components where stray-light causes problems.

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This restriction has been established to avoid the possibility of an accidental pointing error causing too much light to fall upon an instrument.

BBC: Close up on Mercury

Unlike conventional cameras, our femto camera captures an image as one thin slice at a time of one-dimensional space using a "streak tube, " a laboratory instrument that is commonly used by chemists to study light passing through chemical samples.

CNN: A camera that can see around corners