| Sumario: | This article presents information on the multispectral imaging technique developed by the U.S. National Aeronautics and Space Administration to explore planet surfaces. Multispectral imaging, which uses special camera filters to make separate images using different wavelengths of light, is helping to reveal invisible text on ancient papyri and other fragile documents. The technique is being applied to the University of Oxford's Oxyrhynchus collection which includes lost gospels, works by Sophocles and other literary giants, medical treatises and a slew of public and personal records.
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