Pop culture is full of superheroes and villains that can see their worlds in infrared. Superman can do it. So can the fearsome Predator. Sadly for us, the ability has remained confined to comics and film. Yes, the human eye is a marvel in itself, but the ability to see beyond the visible spectrum is just not within its capabilities.
However, a group of Chinese scientists might have just changed that, creating an injectable nanoparticle that provides superhuman vision.