Key points from article :
If we had a near-infrared vision, we could have a permanent night vision.
Scientists have developed nanoparticles that allow mice to see near-infrared light.
Nanoparticles are made from rare-earth metals and convert near-infrared light to visible light.
Physiological and behavioural tests confirmed the night-vision abilities provided by the nanoparticles.
Scientists are from the University of Massachusetts Medical School.