Deep inside our eyes, next to the dark velvet lake of the aqua vitreous, are cones and rods. The rods allow us to see in the gloaming, but only in grayscale. The cones are responsible for color, but they need light to work.
The camera sees things differently than our eyes do. This is the reason photographing at night is so addictive. The camera becomes the youthful eye. The camera is an owl. We are shown something outside of typical human perception.