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Published online 27 January 2000 | Nature | doi:10.1038/news000127-10

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Every photon is sacred

A infrared light detector with unprecedented sensitivity might help researchers identify molecules in space, reports Philip Ball.

Some of the most revealing things about molecules can be discerned by looking at them at wavelengths of light beyond those our eyes can detect. Molecules typically shake, rattle and roll at frequencies corresponding to the oscillations of infrared light.

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