Researchers have given people a taste of superhuman vision after creating contact lenses that allow them to see infrared light, a band of the electromagnetic spectrum that is invisible to the naked eye.
Unlike night vision goggles, the contact lenses need no power source, and because they are transparent, wearers can see infrared and all the normal visible colours of light at the same time.
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To extend humans’ range of vision and enhance our experience of the world, the scientists developed what are called upconversion nanoparticles. The particles absorb infrared light and re-emit it as visible light. For the study, the scientists chose particles that absorb near-infrared light, comprising wavelengths that are just too long for humans to perceive, and converted it into visible red, green or blue light.
Well, that's cool as hell.