Surely on some occasion you have seen a pillar of light live, since they can be formed even in the streets of cities. Do you know how they are created? We explain it to you. The atmosphere of our planet is unique in the Solar System, and as far as our knowledge reaches, unique in the Universe. The different layers of gases and chemical elements that form it produce all kinds of atmospheric phenomena. One of the simplest to understand, but at the same time the most beautiful, are the pillars of light. A pillar of light is exactly what its name implies: a column of light that normally starts from the ground towards the sky. Although it is an optical effect, as we will see. The most common pillar of light is the one that ever appears under the Sun, and is then called the solar pillar. But the most spectacular are those that are formed in landscapes and plains: How are the pillars of light formed? They occur when a light source reflects off ice crystals suspended in the atmosphere on cold days, or high altitude clouds called cirrus or cirrostratus. Ice crystals are oriented horizontally as they fall through the air, reflecting light below or above them, depending on their orientation. Nature never ceases to amaze us, and truly incredible natural phenomena occur daily, capable of challenging anyone’s imagination. The light does not have to be exactly above or below the crystals, nor do the crystals form a column, they are scattered throughout the atmosphere. We see a completely straight column of light due to an optical effect, since only the light reflected by the crystals that are in the same vertical reaches us. These Xiaomi sunglasses have an ultraviolet filter and polarization. The frame is made of reinforced stainless steel. This atmospheric phenomenon can occur with any moderately powerful light source, including the Moon, or street lamps in cities. That is why it is easy to see on cold days or when there is rain or snow in winter. In very cold climates the crystals arrive without falling to ground level, and then the pillar of light is called diamond dust or ice prism. Pillars of light are highly prized by photographers, and because they are relatively easy to produce, you will find a wealth of photos on the internet.