Stories of unseen realms and their inhabitants appear in every culture throughout time. Tales of angels and ancestors, fairies and spirits, beings of light glimpsed at the edges of perception have been passed down, with a few rare souls having seen them with their own eyes long before the camera was invented.
Now, digital cameras are capturing more of the light spectrum than we can normally perceive, allowing more and more people around the world to photograph the same phenomenon: luminous spheres of light known as Orbs.