Abu fanos is a strange optical phenomenon which meets the travelers and the adventurers on the deserts and the isolated places in Arabian Peninsula and it has been viewed by many. it is represented in glowing luminous ball which sometimes shines and disappears, it can move quickly nearly or far from the viewer then it is disappeared. If the viewer also tries to approach it, it has disappeared and appeared on other places. the inhabitants of these places called it " Abu Fanos, Abu Sarag, Abu Nowera" metaphorically as it is considered as a kind of a ghost which is appeared to the traveler on the isolated places on purpose of misleading in the deserts. moreover, in the case of monitoring the light to check its source as there is no scientific or impartial scrutiny, so there is no neither what assured this reality nor what is explained it.