Definition
Noctilucent means 'night shining' or 'glowing in the night.' It's usually used to describe high-altitude clouds that appear luminous after sunset. These clouds are so high up that they still catch the sunlight even after the sun has set below the horizon for observers on the ground. It's like they have their own secret source of light. Think of them as the ghosts of daylight, still shimmering when everything else is dark. ✨ They appear delicate and ethereal.